Appendix M — PEAK WATER DEMAND CALCULATOR

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.0.

2019 CALIFORNIA PLUMBING CODE 475

476 2019 CALIFORNIA PLUMBING CODE

APPENDIX M

PEAK WATER DEMAND CALCULATOR

The provisions contained in this appendix are not mandatory unless specifically adopted by a state agency, or referenced in the adopting ordinance.

M 101.0 General.M 101.1 Applicability. This appendix provides a method for estimating the demand load for the building water supply and principal branches for single- and multi-family dwellings with water-conserving plumbing fixtures, fixture fittings, and appliances.

M 102.0 Demand Load.M 102.1 Water-Conserving Fixtures. Plumbing fixtures, fixture fittings, and appliances shall not exceed the design flow rate in Table M 102.1.

TABLE M 102.1 DESIGN FLOW RATE FOR WATER-CONSERVING PLUMBING FIXTURES AND APPLIANCES IN RESIDENTIAL OCCUPANCIES

• Clothes washers and dishwashers shall have an energy star label.

M 102.2 Water Demand Calculator. The estimated design flow rate for the building supply and principal branches and risers shall be determined by the IAPMO Water Demand Calculator available for download at http://www.iapmo.org/ WEStand/Pages/WaterDemandCalculator.aspx M 102.3 Meter and Building Supply. To determine the design flow rate for the water meter and building supply, enter the total number of indoor plumbing fixtures and appliances for the building in Column [B] of the Water Demand Calculator and run Calculator. See Table M 102.3 for an example. M 102.4 Fixture Branches and Fixture Supplies. To determine the design flow rate for fixture branches and risers,

enter the total number of plumbing fixtures and appliances for the fixture branch or riser in Column [B] of the Water Demand Calculator and run Calculator. The flow rate for one fixture branch and one fixture supply shall be the design flow rate of the fixture according to Table M 102.1. M 102.5 Continuous Supply Demand. Continuous supply demands in gallons per minute (gpm) for lawn sprinklers, air conditioners, hose bibbs, etc., shall be added to the total estimated demand for the building supply as determined by Section M 102.3. Where there is more than one hose bibb installed on the plumbing system, the demand for only one hose bibb shall be added to the total estimated demand for the building supply. Where a hose bibb is installed on a fixture branch, the demand of the hose bibb shall be added to the design flow rate for the fixture branch as determined by Section M 102.4. M 102.6 Other Fixtures. Fixtures not included in Table M 102.1 shall be added in Rows 12 through 14 in the Water Demand Calculator as Other Fixture. The probability of use and flow rate for Other Fixtures shall be added by selecting the comparable probability of use and flow rate from Columns

[C] and [E]. M 102.7 Size of Water Piping per Appendix A. Except as provided in Section M 102.0 for estimating the demand load for single- and multi-family dwellings, the size of each water piping system shall be determined in accordance with the procedure set forth in Appendix A. After determining the permissible friction loss per 100 feet (30 480 mm) of pipe in accordance with Section A 104.0 and the demand flow in accordance with the Water Demand Calculator, the diameter of the building supply pipe, branches and risers shall be obtained from Chart A 105.1(1) through Chart A 105.1(7), whichever is applicable, in accordance with Section A 105.0 and Section A 106.0. Velocities shall be in accordance with Section A 107.0. Appendix I, Figure 3 and Figure 4 shall be permitted when sizing PEX systems.

M102.7.1 Minimum Fixture Branch Size. The minimum fixture branch size shall be ¹ / 2 inch (15 mm) in diameter.

2019 CALIFORNIA PLUMBING CODE 477

APPENDIX M any other purpose or distributed to any other persons or parti es.

TABLE M 102.3 WATER DEMAND CALCULATOR EXAMPLE

Solution: Step 1 of 2 – Find Demand Load for the Build- ing Supply. The Water Demand Calculator [WDC] in Figure 2 is used to determine the demand load expected from indoor water use. The WDC has white-shaded cells and light gray-shaded cells. The values in the light gray cells are derived from a national survey of indoor water use at homes with efficient fixtures and cannot be changed.

FIGURE 1 RESIDENTIAL BUILDING WITH SIX INDOOR FIXTURES

The white-shaded cells accept input from the designer. For instance, fixture counts from the given information are entered in Column [B]; the corresponding recommended fixture flow rates are already provided in Column [D]. The flow rates in Column [D] may be reduced only if the manufacturer specifies a lower flow rate for the fixture. Column [E] establishes the upper limits for the flow rates entered into Column

d cells accept input from the designer. For instance, fixture counts from the given information are entered in Column [B]; the corresponding recommended fixture flow rates are already provided in Column [D]. The flow rates in Column [D] may be reduced only if the manufacturer specifies a lower flow rate for the fixture. Column [E] establishes the upper limits for the flow rates entered into Column

[D]. Clicking the Run Water Demand Calculator button gives 8.5 gpm as the estimated indoor water demand for the whole building. This result appears in the dark gray box of the WDC in Figure 2.

478 2019 CALIFORNIA PLUMBING CODE

APPENDIX M

FIGURE 2 WATER DEMAND CALCULATOR FOR INDOOR USE AT HOME WITH SIX EFFICIENT FIXTURES (EXAMPLE 1).

Solution: Step 2 of 2 – Determine the Pipe Size of the Building Supply. Chart A 105.1(1) for copper piping systems (from Appendix A of the UPC, shown in Figure 3) is used to determine the pipe size, based on given friction loss, given maximum allowable pipe velocity, given pipe material and the demand load computed in Step 1. In Figure 3, the intersection of the given friction loss (15 psi) and the maximum allowable pipe velocity (10 ft/s) is labeled point A . The vertical line that descends from point A to the base of the chart intersects four nominal

is used to determine the pipe size, based on given friction loss, given maximum allowable pipe velocity, given pipe material and the demand load computed in Step 1. In Figure 3, the intersection of the given friction loss (15 psi) and the maximum allowable pipe velocity (10 ft/s) is labeled point A . The vertical line that descends from point A to the base of the chart intersects four nominal

sizes for L-copper pipe. These intersection points are labeled B, C, D, E and correspond to pipe sizes of 1 inch (25 mm), ³ / 4 inch (20 mm), ¹ / 2 inch (15 mm) and ³ / 8 inch (10 mm), respectively. A horizontal line from points B, C, D, E to the righthand side of the chart gives maximum flow rates of 24 gpm, 12 gpm, 4.5 gpm, and 2.3 gpm, respectively. These results are summarized in Table 1 which shows that a ³ / 4 inch (20 mm) type L copper line is the minimum size that can convey the peak water demand of 8.5 gpm.

TABLE 1 PIPE SIZE OPTIONS FOR BUILDING SUPPLY

• For Building in Examples 1, 2, 3, and 4.

2019 CALIFORNIA PLUMBING CODE 479

APPENDIX M any other purpose or distributed to any other persons or parti es.

FIGURE 3 CHART A 105.1(1) FOR FINDING PIPE SIZE

Example 2: Indoor and Outdoor Water Use - Find the pipe size for the building supply [Figure 1, Pipe Section 4] if the building in Example 1 adds two outdoor fixtures (hose bibb, each with a fixture flow of 2.0 gpm). Solution: Step 1 of 2 – Find Demand Load for the Build- ing Supply. The WDC has been developed exclusively for peak indoor water use which can be viewed as a high-frequency short dura

tion process. Because fixtures for outdoor water use may operate continuously for very long periods, they are not included in the WDC. To account for water use from one or more outdoor fixtures, add the demand of the single outdoor fixture with the highest flowrate to the calculated demand for indoor water use. With two hose bibbs, the demand of only one hose bibb is included. Hence, in this example, the total demand for the whole house is 8.5 gpm + 2.0 gpm = 10.5 gpm.

480 2019 CALIFORNIA PLUMBING CODE

APPENDIX M

Solution: Step 2 of 2 – Determine the Pipe Size of the Building Supply. Table 1 shows that at 10.5 gpm the building supply shall be 3 / 4 inch (20 mm) in diameter.

Example 3: Indoor, Outdoor and Other Fixture Water Use - Find the pipe size for the water supply [Figure 1, Pipe Section 4] if the building in Example 2 adds a kitchen pot filler and a dog bath each with a faucet flow rate of 5.5 gpm. Solution: Step 1 of 2 – Find Demand Load for the Build- ing Supply. The kitchen pot filler and dog bath are not listed in Column

[A] of the WDC. To accommodate cases such as this, the WDC provides up to three additional rows for “Other Fixtures”. Enter the kitchen pot filler and dog bath in Column

[A] of the WDC and enter the fixture count for each in Column [B]. Find an indoor fixture that has a similar probability of use in Column [C] and add that to the column. Finally, enter the flow rate of the kitchen pot filler and dog bath in Column [D]. The estimated indoor water demand for the whole building is 11 gpm, as shown in the WDC in Figure 4. As illustrated in Example 2, the hose bibb will increase the total demand for the whole house to 13 gpm. Note that a reset button is provided to clear any numbers in Column [B] from a previous calculation. Solution: Step 2 of 2 – Determine the Pipe Size of the Building Supply. Table 1 shows that at 13 gpm the building supply shall be 1inch (25 mm) in diameter.

Example 4: Sizing Branches and Risers - For individual hot and cold branches, repeat Steps 1 and 2. For example, for the hot water branch at the water heater [Figure 1, Pipe Section 3], enter all the fixtures and appliances that use hot water into the Water Demand Calculator (toilets will be excluded) as seen in Figure 5. Use the calculated demand load to find the pipe size in Step 2. Table 1 shows that at 7.7 gpm, the hot water branch shall be ³ / 4 inch (20 mm) in diameter.

For each additional hot and cold branch [Figure 1, Pipe Sections 1 and 2], enter the number of fixtures and appliances served by that branch into the WDC and use that demand in Step 2 to determine the branch size. If the branch serves a hose bibb, add the demand of the hose bibb to the calculated demand flow for the branch. As discussed in Example 2, the hose bibb is not to be entered into WDC, since the Calculator is for indoor uses only.

When there is only one fixture or appliance served by a fixture branch, the demand flow shall not exceed the fixture flow rate in Column [E] of the Water Demand Calculator. The fixture flow rate would be used in Step 2 to determine the size of the fixture branch and supply.

FIGURE 4 WATER DEMAND CALCULATOR TO ACCOMMODATE OTHER FIXTURES (EXAMPLE 3).

2019 CALIFORNIA PLUMBING CODE 481

APPENDIX M any other purpose or distributed to any other persons or parti es.

FIGURE 5 WATER DEMAND CALCULATOR FOR THE HOT WATER BRANCH (EXAMPLE 4).

482 2019 CALIFORNIA PLUMBING CODE

INDEX

© 2018 International Association of Plumbing and Mechanical Officials. All rights reserved. The copyright in this index is separate and distinct from the copyright in the document that it indexes. The licensing provisions set forth for the document are not applicable to this index. This index may not be reproduced in whole or in part by any means without the express written permission of IAPMO.

– A – ABANDONED

Grease interceptors . . . . . . . . . . . . . . . . . . . . . .1014.3.7 Sewers and sewage disposal . . . . . . . . .722.0, H 1101.0 ACCESS PANELS . . . . . . . . . . . . . . . . . . . . . .317.1, 402.10 ACCESS TO

Appliances . . . . . . . . . . . . . . . . . . .507.26, 508.3, 508.4 Backwater valves . . . . . . . . . . . . . . . . . .710.6, 1101.6.4

1503.2.3 Chemical waste system piping . . . . . . . . . . . . . . . .811.4 Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . .707.8, 719.5 Drips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.6.1 Emergency eyewash and

shower equipment . . . . . . . . . . . . . . . . . . . . . . .416.4 Flexible connectors . . . . . . . . . . . . . . . .604.5, 1212.5.3 Flushometers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .413.2 Fuel gas meters . . . . . . . . . . . . . . . .1208.7.1, E 402.4.1 Fuel gas piping . . . . . . . . . . . . . . . .1210.2.2.1, 1210.3.4 Fuel gas pressure regulators . . . . . . .1208.8.2, 1210.4.1 Fullway valves . . . . . . . . . . . . . . . . . . . . . . .606.2, 710.6 Grease interceptors . . . . . . . . . . . . . . . . . . . . . .1014.3.4 Indirect waste receptors . . . . . . . . . . . . . . . . . . . .804.1 Interceptors . . . . . . . . . . . . . . . . . . . . . .1009.3, 1009.5,

1016.4, H 901.5 Lapped flanges . . . . . . . . . . . . . . . . . . . . . .1208.6.13.7 Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 501.12 Meters and submeters . . . . . . . . . . . . . . . . . . . .L 407.4 Plumbing fixtures . . . . . . . . . . . . . . . . . . . . . . . . .402.1 Pool heaters on/off switch . . . . . . . . . . . . . .L 503.3.6(1) Rainwater storage tanks . . . . . . . . . . .1603.4, K 105.3.1 Septic tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 501.5

Shutoff valves . . . . . . . . . . . . . . . . . . . . . .606.3, 606.6,

1210.9, 1210.9.1,

1210.9.2, 1210.9.4,

1212.5.3, 1212.6,

1311.8(1) – 1311.8(2),

E 403.9, E 403.13(2)(6)

Sumps . . . . . . . . . . . . . . . . . . . . . . . . . . . .710.10, 810.3

Toilet facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . .422.4

Trap seal primers . . . . . . . . . . . . . . . . . . . . . . . . .1007.1

Vacuum pumps . . . . . . . . . . . . . . . . . . . . . . . .C 501.2.1

Valves for

nonpotable application . . . . . . . . . . . . . . . . . . . . .1503.8

Vent connectors, fuel gas . . . . . . . . . . . . . . . .509.10.10

Water meters and submeters . . . . . . . . . . . . . . .L 407.4

Water pressure regulators and strainers . . . . . . . .608.2

2019 CALIFORNIA PLUMBING CODE

ACCESSIBLE, DEFINITION . . . . . . . . . . . . . . . . . . . .203.0

ACCESSIBLE, READILY, DEFINITION . . . . . . . . . . . .203.0

ACCESSIBLE PLUMBING FACILITIES

For persons with disabilities . . . . . . . . . . . . . . . . .403.2

Protection against contact . . . . . . . . . . . . . . . . . . .403.3

Where required . . . . . . . . . . . . . . . . . . . . . . . . . . .403.1

ACRYLONITRILE-BUTADIENE-STYRENE

(ABS) PIPE . . . . . . . . . . . . . . . .203.0, Table 313.3, 701.2,

Table 701.2, 705.1, 705.9.4, 903.1, 1101.4

ADMINISTRATION, CALIFORNIA . . . .Chapter 1, Division I

AIR GAPS

Backflow prevention . . . . . . 603.2, Table 603.2, 603.3.1,

Table 603.3.1, 603.4.4

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.0

Discharge from drinking

water treatment units . . . . . . . . . . . . . . . . . . . . . 611.2

AIR TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .710.11

ALTERATIONS AND REPAIRS

Fuel gas piping . . . . . . . . . . . .1203.1, 1213.1.2, 1213.4.2

Health care facilities . . . . . . . . . . . . . . . . . . . . . . .1301.6

Plumbing systems . . . . . . . . . . . . . . . . . .102.4, 301.2.5

ALTERNATE MATERIALS, DESIGN,

AND METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . .301.3

ALTERNATE WATER SOURCE

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0

For nonpotable applications . . . . . . . . . . . . .Chapter 15

For special water features . . . . . . . . . . . . . . . . .L 406.1

Future Connections . . . . . . . . . . . . . . . . . . . . .1504.9.1

Identification of piping . . . . . . . . . . . . . . . . . . . . .601.3.3

Nonpotable rainwater

catchment system . . . .Table 1601.5, 1602.4, K 102.2

APPLIANCES

Automatically operated . . . . . . . . . .509.3.4.1, 509.5.7.1

Categorized vent

diameter/area, definition . . . . . . . . . . . . . . . . . .203.0

Connections to building

fuel gas piping . . . . . . . . . . . . . . . . . . . . . . . . .1212.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0

Direct-vent . . . . . . . . . . . . . . . .206.0, 509.2.6, 509.5.10.1,

509.8.2, 509.12

In attics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.4

Indirect waste type . . . . . . . . . . . . . . . . . . .806.0, 807.0

In under-floor spaces . . . . . . . . . . . . . . . . . . . . . . .508.4

On roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.0

483

Vent Connectors . . . . . . . . . . . . . . . . . .509.10, 510.2.11

Venting of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.0

APPLICATION FOR PERMIT . . . . . . . . . . . . . . . . . . .104.3

APPROVED, DEFINITION . . . . . . . . . . . . . . . . . . . . . .203.0

APPROVED TESTING

AGENCY, DEFINITION . . . . . . . . . . . . . . . . . . . . . . .203.0

AREA DRAINS . . . . . . . . . . . . . . . . . . . . . . . . .203.0, 1101.5

ASBESTOS-CEMENT PIPE . . . . . . . . . . . .Table 510.1.2(5),

Table 510.2(5)

ASPIRATORS . . . . . . . . . . . . . . . . . .203.0, 603.5.9, 1303.5

AUTHORITY HAVING JURISDICTION . . . . . . .103.0, 203.0

AUTHORITY TO

Disconnect gas . . . . . . . . . . . . . . . . . . . . . . . . . .1206.0

Plumbing system . . . . . . . . . . . . . . . . . . . . . . . . . .106.5

Render gas service . . . . . . . . . . . . . . . . . . . . . . .1205.0

AUTOMATIC

Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .K 106.4.4

Flushometer valves . . . . . . . . . . . . . . . . . . . . . . . .413.2

Pressure relief valve . . . . . . . . . . . . . . . . . . . . . . .608.4

Pumps . . . . . . . . . . . . . . . . . . .612.7.2, 1101.6.2, 1314.3,

C 501.2.5, H 601.8

Seat cover dispensers . . . . . . . . . . . . . . . . . . . . . .411.3

Shutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.3, 504.6

Siphon, septic tanks . . . . . . . . . . . . . . . . . . . . . .H 601.8

Sprinkler systems . . . . . . . . . . . . . . . . . . . . . . .603.5.14

Sumps and receiving tanks . . . . . . . . . . . . . . . . . .710.9

Vent dampers, fuel gas . . . . . . . . . . . .509.14, 509.14.1

AUTO WASH RACKS . . . . . . . . . . . . . . . . . . . . . . . . .1011.0

– B –

BACKFILLING . . . . . . . . . . . . . . .314.4, 314.4.1, 1210.1.2.1,

1310.6, 1310.6.3, 1310.6.5,

1504.7.2, H 601.2

BACKFLOW

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.0

Fire sprinkler protection . . . . . . . . . . . . . . . . . . . 612.3.8

Prevention . . . . . . . . . . . . . . . . . . . . . . . . . 602.2, 602.3

Prevention devices

or assembly . . . . . . . . . . . . 603.1, Table 603.2, 603.3

BACKFLOW CONNECTION . . . . . . . . . . . . . . .204.0, 603.0

BACKFLOW PREVENTERS

Approved standards . . . . . . . . . . . . . . . . . . .Table 603.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0

For hot water . . . . . . . . . . . . . . . . . . . . . . . . . . .603.4.5

Integral . . . . . . . . . . . . . . . . .417.2, 417.3, 417.4, 603.4.6

Prohibited locations . . . . . . . . . . . . . . . . . . . . . .603.4.9

Protection from damage . . . . . . . . . . . . . . . . . . .E 302.6

Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.2

BACKFLOW PREVENTION . . . . . . . . . . . . . . .602.3, 603.3

BACK-TO-BACK FIXTURES . . . . . . . . . . . . . . . . . . . .704.2

BACKWATER VALVES

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.0

Where Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710.6

BALLCOCKS . . . . . . . . . . . . . . . . . . . .Table 603.2, 603.5.2 BAPTISTRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .406.1 BATHROOM, HALF, DEFINITION . . . . . . . . . . . . . . . .204.0 BATHROOM GROUP . . . . . . . . . . . . .204.0, 908.2, C 303.0 BATHTUB, PROHIBITED TYPE . . . . . . . . . . . . . . . . .405.3 BATHTUBS AND

WHIRLPOOL BATHTUBS . . . . . . . . . . . . . . . . . . . .409.0 BIDETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.5, 410.0 BLOWOFF CONDENSERS . . . . . . . . . . .810.1, Table 810.1 BOARD OF APPEALS . . . . . . . . . . . . . . . . . . . . . . . . .107.0 BOILER BLOWOFF

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0 Discharge requirements . . . . . . . . . . . . . . . . . . . .810.1 BONDING JUMPER

Bonding of CSST fuel gas piping . . . . . . . . . . . . .1211.2 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0 BOTTLING ESTABLISHMENTS . . . . . . . . . . . . . . . .1013.0 BUILDING DRAIN

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0 Existing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102.4.1 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Table 701.2 Sizing . . . . . . . . . . . . . . . . . .703.0, Table 703.2, 710.5,

C 304.2, Table C 304.2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .712.0 BUILDING DRAIN (STORM),

DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0 BUILDING SEWERS

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0 Existing . . . . . . . . . . . . . . . . . . . . . . . . . .102.4.1, 715.3 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .721.0 Material . . . . . . . . . . . . . . . . . .Table 701.2, 715.1, 720.0 Sizing . . . . . . . . . . . . .710.5, 717.0, Table 717.1, C 304.2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0 BUILDING SUPPLY . . . . . . . . . . . . . . . . . .204.0, Chapter 6 BURRED ENDS . . . . . . . . . . . .309.3, 609.1, 701.3.1, 903.3,

1208.6.8, 1309.5.2

– C – CAPACITY OF

Breathing air cylinders . . . . . . . . . . . . . . . . . . . .F 1001.1 Graywater systems . . . . . . . . . . . . . . . . . . . . . .1503.2.1 Interceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.2.1 Irrigation field and

mulch basin . . . . . . . .1503.2.1, 1504.2, Table 1504.2,

1504.3, 1504.5.1, 1504.5.2, 1504.6.2 Medical air compressors . . . . . . . .1313.2.1, 1313.5.1(1) Rectangular scuppers . . . . . . . . . . . . . . . . . . . .D 104.0 Sewage ejectors or pumps . . . . . . . . . . . . . . . . . .710.3 Sump pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.6.2 Water heaters . . . . . . . . . . . . . . . . . . .501.1, Table 501.1(1) CAST-IRON PIPE

Approved standards . . . . . . . . . . . . . . . . . . . . . .301.2.4 Discharge line from ejectors . . . . . . . . . . . . . . . . .710.4

Drainage piping . . . . . . . . . . . . . . . . . . . . . . . . . . .701.2

484 2019 CALIFORNIA PLUMBING CODE

Fittings . . . . . . . . . . . . . . . . . .301.2.3, 604.6, 1208.6.11.4

Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.6.13.1

Joining . . . . . . . . . . . . . . . . . . . . . . . . . .705.2, 705.10.1

Prohibited use . . . . . . . . . . . . . . . . . . . .316.1, 1208.6.3

CAULKED JOINTS . . . . . . . . . . . . . . . . . . . . . . . . . .705.2.1

CAULKING FERRULES . . . . . . . . . . . . . .701.6, Table 701.6

CERTIFICATION

Backflow assembly testers . . . . . . . . . . . . .205.0, 603.2

Medical gas or medical

vacuum installers . . . . . . . . . . . . . . . . . . . . . . .1306.0

Medical gas or medical

vacuum systems . . . . . . . . . . . . . . . . . . . . . . .1319.0

Pipe welder, definition . . . . . . . . . . . . . . . . . . . . . .225.0

Residential fire sprinklers installers . . . . . . . . . . . .612.1

CESSPOOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 801.1

Abandoned . . . . . . . . . . . . . . . . . . . . . . .722.0, H 1101.0

Connections to sewer prohibited . . . . . . . . . . . . . .714.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

CHECK VALVES

In drainage systems . . . . . . . . . . . . . . .710.4, 710.12.1,

710.13.2, 1004.2

In firefighter breathing air

replenishment systems . . . . . . . . . . . . . . . . . .F 501.7,

F 601.5.1, F 701.3

In fuel gas systems . . . . . . . . . . . . . . . . . . . . . .1208.8.1

In medical gas and

medical vacuum systems . . . . . . . . . . . . . .1313.4(11),

1313.6.2(2), 1314.5.4(2)

In water supply systems . . . . .Table 603.2, 603.3, 608.3

CHEMICAL RESISTANT GLASS PIPE . . . . . . . . . . . .811.2

CHEMICAL WASTES . . . . . . . . . . . . . . . . . . . . .205.0, 811.0

CHIMNEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5

Cleanouts . . . . . . . . . . . . . . . . . . . . .509.5.6.2, 509.5.9

Decorative Shrouds . . . . . . . . . . . .509.5.1.1, 509.5.4.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Existing . . . . . . . . . . . . . . . . . . . . . . .509.5.6, 509.5.6.3

Factory-built . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.1

Masonry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.3

Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.2

Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.5

Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.8

Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.4

CHLORINATED POLYVINYL

CHLORIDE (CPVC) PIPE OR TUBING

Approved standards, water supply . . . . . . . .Table 604.1

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

Medical vacuum system . . . . . . . . . . . . . . . . . . .1308.5

Residential sprinklers . . . . . . . . . . . . . . . . . . . .612.4.2,

Table 612.5.3.2(6),

Table 612.5.3.2(7)

CHLORINATED POLYVINYL

CHLORIDE/ALUMINUM/CHLORINATED

POLYVINYL CHLORIDE

(CPVC-AL-CPVC) PIPE OR TUBING

Approved standards, water supply . . . . . . . .Table 604.1

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

CIRCUIT VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .911.0

CLARIFIERS . . . . . . . . . . . . . . . . . . . . . . . . . .205.0, 1009.0

CLEANOUT PLUGS OR CAPS . . . . . . . . . . .707.1 – 707.3,

707.13, 1107.2

CLEANOUTS

Access . . . . . . . . . . . . . . . . . . . . . .707.8, 719.5, 801.3.2

Building sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.0

Change of direction . . . . . . . . . . . . . . . . . .707.4, 719.1,

801.3.2, 803.3, 1002.3

Clearances . . . . . . . . . . . . . . . . . . . . . . . . .707.8, 707.9

Condensate drain . . . . . . . . . . . . . . . . . . . . . . . .814.3.1

Cover plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.8

Direction of flow . . . . . . . . . . . . . . . . . . . . . .707.5, 719.4

Horizontal drains . . . . . . . . . . . . . . . . . . . . .707.4, 719.1

Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.6

Plugs . . . . . . . . . . . . . . . . . . . . . . . .707.1, 707.2, 707.12

Prohibited use of . . . . . . . . . . . . . . . . . . . . . . . . . .316.1

Size . . . . . . . . . . . . . . . . . . . . . . . . . .707.1, Table 707.1

Soil or drain pipes . . . . . . . . . . . . . . . . . . . . . . . . .317.1

Where required . . . . . . . . . . . . . . . .707.4, 719.1, 909.1,

910.6, 1002.3, 1008.1,

1017.1, 1101.13.1, E 301.4

CLEARANCE

Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . .707.8, 707.9

Fuel gas vents . . . . . . . . . .509.7.3.4, Table 509.7.3.4(1),

Table 509.7.3.4(2)

Water heaters . . . . . . . . . . . . . . . . . . . .504.3.1, 504.3.2

CLEAR WATER WASTE

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .812.1

CLINICAL SINKS . . . . . . . . . . . . . . . . .205.0, 413.1, 1303.7

CLOSET BENDS . . . . . . . . . . . . . . . . . . . . . .310.3, 402.6.1

CLOSET RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.1

CLOSET SCREWS . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.2

CLOTHES WASHER SYSTEM

Commercial gray water discharge . . . . . . . .1503.8.2.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

CODE, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

COLLECTION CENTERS AND

FACILITIES . . . . . . . . . . . . . . . . . . . . . .601.6, 725.0, 1010.3

COMBINATION WASTE AND

VENT SYSTEMS . . . . . . . . . . . . .205.0, 910.0, Appendix B

COMBUSTIBLE

MATERIAL, DEFINITION . . . . . . . . . . . . . . . . . . . . .205.0

COMBUSTIBLE PIPING

INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . .1404.0

2019 CALIFORNIA PLUMBING CODE 485

486 2019 CALIFORNIA PLUMBING CODE

Drainage discharge, prohibited . . . . . . . .419.2, 1014.1.3

Drainage fixture unit (DFU) . . . . . . . . . . . . .Table 702.1

Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . .L 403.1

Flexible connector length . . . . . . . . . . . . . . . . . . .604.12

Water supply

fixture units (WSFU) . . . . .Table 610.3, Table A 103.1,

Table C 303.2

DISINFECTED TERTIARY RECYCLED

WATER, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . .206.0

DISPOSAL FIELDS . . . . . . . . . . . . . .206.0, 1504.1, 1504.4,

1504.5.3, Appendix H

DOSING TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 601.8

DRAINAGE SYSTEM

Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . .707.0, 719.0

Change in direction . . . . . . . . . . . . . . . . . . . . . . . .706.0

Damage to public sewer or private

sewage disposal system . . . . . . . . . . . . .305.1, 714.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0

Fixture units . . . . . . . . . . . . . . . . . . . . . . . . .Table 702.1

Independent systems . . . . . . . . . . . . . . . . . . . . . . .311.0

Indirect waste . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 8

Joints and connections . . . . . . . . . . . . . . . . . . . . .705.0

Materials . . . . . . . . . . . . . . . . .701.2, Table 701.2, 715.0

Obstruction of flow . . . . . . . . . . . . . . . . . . . . . . . . .310.5

Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.9

Sizing . . . . . . . . . . . . . . . . . .702.0, Table 702.1, 703.0,

Table 703.2, 717.0, Table 717.1

Slope of piping . . . . . . . . . . . . . . . . . . . . . . . . . . .708.1

Sumps and ejectors . . . . . . . . . . . . . . . . . . . . . . . .710.0

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . .712.0, 723.0

Waste detrimental to . . . . . . . . . . . .306.0, 811.1, 1012.1

DRINKING FOUNTAINS . . . . . . . . . . . . . . . . .206.0, 415.0,

809.0, E 501.8

DUCTILE IRON PIPE . . . . . . . . . . . . . . .Table 604.1, 605.4

DURHAM SYSTEM, DEFINITION . . . . . . . . . . . . . . . .206.0

– E –

EARTHQUAKE-ACTUATED GAS

SHUTOFF VALVES . . . . . . . . . . . . . . . . . . . . . . . . . .1211.7

EFFECTIVE GROUND-FAULT

CURRENT PATH, DEFINITION . . . . . . . . . . . . . . . . .207.0

EFFECTIVE OPENING . . . . . . . . . . . . .207.0, Table 603.3.1

EJECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . .710.2 – 710.5,

710.9 – 710.12

EMERGENCY SANITARY DRAINAGE . . . . . . . . . . . . . .727.0

EMERGENCY EYEWASH AND

SHOWER EQUIPMENT . . . . . . . . . . . . . . . . . . . . . .416.0

ENFORCING AGENCY, DEFINITION . . . . . . . . . . . . . . .207.0

ESSENTIAL PLUMBING PROVISIONS . . . . . . . . . . . . .321.0

EXCAVATIONS . . . . . . . . . . . . . . . . .314.0, 1203.2, 1504.4,

H 301.1, H 701.4

EXCESSIVE WATER PRESSURE . . . . . . . . . . . . . . . .608.2

EXPANSION AND CONTRACTION

OF PIPE, PROVISION FOR . . . . . . . . . . . . . . . . . . .312.2

EXPANSION TANKS . . . . . . . . . . . . . . . . . . . . .608.2, 608.3

– F –

F RATING . . . . . . . . . . . . . . .208.0, 1404.3, 1405.3, 1406.4

FAUCETS

Approved standards . . . . . . . . . . 417.1, 417.4, L 402.5.1

Kitchen . . . . . . . . . . . . . . . . . . . . . . . . . 420.2.1, 420.2.2

Maximum flow rate. . . . . . . . . . . . . . . . . . . 407.2, 420.2,

L 402.4, L 402.5

Metering . . . . . . . . . . . . . . 407.2.4, 407.4, Table L 402.1,

L 402.5.2, Table L 701.2(1)

Residential kitchen . . . . . . . . . . . . . . . . . . . . . . . L 402.4

Self closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407.4

Separate controls for

hot and cold water . . . . . . . . . . . . . . . . . . . . . . . 417.5

Sink faucets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420.2

Temperature limitation. . . . . . . . . . . 407.3, 408.3, 409.4,

410.3, 416.2

With pull out spouts . . . . . . . . . . . . . . . . . . . . . . . . 417.4

FIRE SPRINKLERS, RESIDENTIAL . . . . . . . . . . . . . .612.0

FIREFIGHTER BREATHING AIR

REPLENISHMENT SYSTEMS . . . . . . . . . . . .Appendix F

FITTINGS

Branch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419.2

Cleanout . . . . . . . . . . . . . . . . . . . . . . . . . . .707.1, 707.2

Dielectric . . . . . . . . . . . . . . . . . . . . . . . .605.15 605.16.1,

605.16.3, 705.10.2,

1309.14, E 403.8.2

Drainage system . . . . . . . . . . .Table 701.2, 701.3, 705.0,

706.0, E 504.3

Firefighter breathing air

replenishment systems . . . . . . . . . . . . . . . . . .F 801.3

Fixture . . . . . . . . . . . . . . . . . . . . . . .402.9, 403.2, 417.0,

603.5.19, L 402.0

Fuel gas piping . . . . . . . . . . . . . . . .1208.6.5, 1208.6.11,

1208.6.12, 1210.3.1

Fuel gas vent . . . . . . . . . . . . . . . . . .509.3.6(2), 509.4.2,

510.2.8, 510.2.9

Gray water . . . . . . . . . . . . . . . . . . . . . . . . . . . .1503.9.2

Inlet, for fixture connections . . . . . . . . . . . .704.1, 704.2

Lead content . . . . . . . . . . . . . . . . . . . . . .604.2, 604.2.1

Material of . . . . . . . . . . . . . . . . . . . .604.0, Table 604.1,

Table 701.2, 701.3, 903.0,

1208.6, 1208.6.11, 1208.6.11.4

Medical gas

and medical vacuum . . . . . . .1309.2, 1309.3, 1309.4

Plumbing vent . . . . . . . . . . . . . . . . . . . . . . . . . . . .903.0

Prohibited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.1

Screwed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.8

Water supply system . . . . . . . . . . . .604.0, Table 604.1,

605.0, A 107.3

2019 CALIFORNIA PLUMBING CODE 487

FIXTURE . . . . . . . . . . . . . . . . . . . . .(see Plumbing fixtures)

Branch, definition . . . . . . . . . . . . . . . . . . . . . . . . .208.0

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .704.0

Drain, definition . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0

Flanged connection . . . . . . . . . . . . . . . . . . . . . . . .402.6

Future installations . . . . . . . . . . . . . . . . . . . . . . . .402.11

Plumbing . . . . . . . . . . . . . . . . . . (see Plumbing fixtures)

Units, drainage (DFU) . . . . . . . . . . . 702.1, Table 702.1,

C 303.1, Table C 303.3

Units, water supply (WSFU) . . . . . . . 610.3, Table 610.3,

610.10, Table 610.10,

A 103.1, Table A 103.1,

C 303.1, Table C 303.2

FLAGPOLING OF VENTS . . . . . . . . . . . . . . . . . . . . . .906.3

FLAMMABLE VAPOR OR FUMES . . . . . . . . . . .208.0, 507.12

FLASHING . . . . . . . . . . . . . . . . . . . . . . . . .701.5, 906.5, 906.6,

1102.3, K 103.1.1

FLOOD RESISTANT CONSTRUCTION

Coastal high hazard area . . . . . . . . . . . . .205.0, 301.4.1

Design flood elevation . . . . . . . . . . . . . . . . . . . . . .206.0

Flood hazard area . . . . . . . . . . . . . . . . . . . . . . . . .208.0

Flood hazard resistance . . . . . . . . . . . . . . . . . . . . .301.4

FLOOD-LEVEL RIM . . . . . . . . . . . . . . . . . . . .208.0, 801.3.2

FLOODED, DEFINITION . . . . . . . . . . . . . . . . . . . . . . .208.0

FLOOR DRAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418.0

Connected into a trap . . . . . . . . . . . . . . .1006.1, 1007.1

Directly connected to

drainage system . . . . . . . . . . . . . . . . . . . . . . . .1007.1

Location . . . . . . . . . . . . . . . . . . . . .418.3, 418.4, 1017.1

Required . . . . . . . . . . . . . . .408.7, 704.3, 1017.1, E 501.6

FLUSH TANKS . . . . . . . . . . . . . . . . . . .208.0, 402.4, 413.1,

413.3, 413.5, 601.2

FLUSH VALVES, DEFINITION . . . . . . . . . . . . . . . . . . .208.0

FLUSHOMETER TANKS . . . . . . . . . . . . . . . . .208.0, 411.2,

413.1, 603.5.3

FLUSHOMETER VALVES . . . . . . . . . . .208.0, 413.1, 413.2,

601.2, 601.2, 603.5.1, 610.10, Table 610.10

L 402.2.2,

FLUX . . . . . . . . . . . . . . . . . . . . . . . . . .604.1, 604.2, 605.1.1,

605.1.4, 705.3.1, 705.3.3,

1309.7, 1309.7.2, 1309.9.1

FOG DISPOSAL SYSTEMS . . . . . . . . . . . . . .208.0, 1015.0

FOOD ESTABLISHMENT, DEFINITION . . . . . . . . . . . . .208.0

FOOD-HANDLING EQUIPMENT

AND FIXTURES . . . . . . . . . . . . . . . . . . . . . . . . . . . .801.3

FOOD WASTE DISPOSER . . . . . . . . . . . . . . .419.0, 714.4,

1001.2, 1014.1.3

FREEZE PROTECTION . . . . . . . . . . . . . . . . . . .312.6, 603.4.7,

603.5.7, 608.2, 1005.1

1210.1.4, 1210.6.1, 1310.3,

1503.9.4, 1603.13, K 106.3

FROST OR SNOW CLOSURE . . . . . . . . . . . . . . . . . . .906.7

FUEL GAS PIPING . . . . . . . . . . . . . . . . . . . . . . .Chapter 12

Cathodic protection . . . . . . . . . . .E 403.8.1 – E 403.8.4

Change in direction . . . . . . . . . . . . . . . . . . . . . . .1210.5

Concealed location . . . . . . . . . . . . . . . . . . . . . . .1210.3

Detection of leaks . . . . . . . . . . . . . . . . . . . . . . . .1213.4

Electrical bonding and grounding . . . . . . . . . . . . .1211.0

Inspection and testing . . . . . . . . . . . . . . .1203.0, 1213.0

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.0

Interconnections . . . . . . . . . . . . . . . . . . . . . . . . .1208.3

Joints and fittings . . . . . . . . . . . . . . . . . . . . . . . . .1208.6.5,

1208.6.11 – 1208.6.12.4

1213.2.1, 1213.2.2

Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.6

Obstruction of flow . . . . . . . . . . . . . . . . . . . . . . .1210.10

Purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1213.6

Sizing . . . . . . . . . . . . . . . . . . . .1208.4, 1214.0, 1215.0,

Table 1215.2(1) – Table 1215.2(36),

E 403.3

Supports . . . . . . . . . . . . . . . .1210.2.4, Table 1210.2.4.1

Underground installation . . . . . .1208.6.3.3, 1208.6.4.3,

1210.1, E 401.2,

E 403.7, E 403.8.4

FUEL GAS VENTS

Appliances not requiring vents . . . . . . . . . . . . . .509.2.1

Caps . . . . . . . . . . . . . . . . . . . . . . . .509.6.1.5, 509.7.4.3

Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.7.3.4,

Table 509.7.3.4(1),

Table 509.7.3.4(2)

Dampers . . . . . . . . . . . . . . . . . . . . . . . .509.13, 509.14,

509.14.1

Direct vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.2.6

General requirements . . . . . . . . . . . . . . . . . . . . . .509.0

Insulation shield . . . . . . . . . . . . . . . . . . . . . . . .509.6.1.7

Integral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.2.7

Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.1

Mechanical draft . . . . . . . . . . . . . . .509.3.3 – 509.3.3.5

Obstruction of flow . . . . . . . . . . . . . . . . . . . . . . . .509.15

Plastic piping . . . . . . . . . . . . . . . . . . . . . . . . . . .509.4.1

Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.4.3

Termination . . . . . . . . . . . . . . . . . . .509.6.1 – 509.6.1.6,

509.7.2, 509.8

Wall penetrations . . . . . . . . . . . . . . . . . . . . . . . . . .509.8

FUEL GAS VENT, SIZING

Category I appliances . . . . . . . . . . . . . .509.6.2.1, 510.0

Multiple appliances . . . . . . . . . . . . . . . . . . . . . . . .510.2,

Table 510.2(1) – Table 510.2(9)

Multistory . . . . . . . . . . . . . . . . . . . . .509.6.3, 509.6.3.2,

510.2.13 – 510.2.16

Single appliance . . . . . . . .509.7.4.1, 509.10.2.1, 510.1,

Table 510.1.2(1) – Table 510.1.2(6)

FUTURE CONNECTIONS . . . . . . . . . . . . . . . . . . . .1504.9.1

488 2019 CALIFORNIA PLUMBING CODE

– G –

GANG OR GROUP SHOWERS . . . . . . .209.0, 408.3, 408.8

GARBAGE GRINDER . . . . . . . . .(see Food waste disposer)

GRADE

Building sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.1

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0

Horizontal drainage . . . . . . . . . . . . . . . . . . . . . . . .708.0

GRAVITY DRAINAGE REQUIRED . . . . . . . . . . . . . . .709.0

GRAY WATER, DEFINITION . . . . . . . . . . . . . . . . . . . . .209.0

GRAY WATER SYSTEMS . . . . . . . . . . . . . . . .209.0, 601.3.3,

Table 1501.5, 1501.6, 1502.0,

1503.8.3

GREASE INTERCEPTORS . . . . . . . . . . . . . . . . . . . .1014.0

Approved standards . . . . . . . . . . . . . . . . . . . . . . .1014.1

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0

Capacity . . . . . . . . . . . . . . . . . .1014.2.1, Table 1014.2.1

Gravity-type . . . . . . . . . . . . . . . . .1014.3, Table 1014.3.6

Hydromechanical-type . . . . . . . . . . . . . . . . . . . . .1014.2

Not required . . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.1.3

Required . . . . . . . . . . . . . . . . . .1010.1, 1014.1, H 101.3

GRINDER PUMPS . . . . . . . . . . . . . . . . . . . . . . . . . . .710.12

– H –

HANDHELD SHOWERS . . . . . . . . . . . . . . . . . . . . . . . .417.3

HANDWASHING FIXTURE, DEFINITION . . . . . . . . . . .210.0

HANGERS . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Supports)

HARMFUL WASTES . . . . . . . . . . . . . . . . . . . .(see Wastes,

detrimental or harmful)

HEALTH AND SAFETY . . . . . . . . . . . . . . . . . . .101.3, 102.5

HEALTH FACILITIES AND CLINICS,

WATER DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . .613.0

HEAT EXCHANGERS . . . . . . . . . . . . . . . . . . . . . . .505.4.1,

603.5.4, C 302.0

HEAT-FUSION WELD JOINTS . . . . . . . . . . .210.0, 605.6.1,

605.11.1, 1208.6.12.2

HORIZONTAL BRANCH,

DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0

HORIZONTAL PIPE,

DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0

HORIZONTAL-TO-HORIZONTAL

DRAINAGE FITTINGS . . . . . . . . . . . . . . . . . . . . . . .706.3

HORIZONTAL-TO-VERTICAL

DRAINAGE FITTINGS . . . . . . . . . . . . . . . . . . . . . . .706.2

HORSE MEAT AND PET FOOD

ESTABLISHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . .601.8

HOT-MOPPED SHOWER PANS . . . . . .(see Shower, pans)

HOT WATER SUPPLY PIPING . . . . . . . . . . . . .601.2, 609.1,

609.4, 609.11,

610.3, 610.12.1,

L 501.0, L 502.0, L 503.0

HOUSE DRAINS . . . . . . . . . . . . . . . . . .(see Building drain)

HOUSE SEWERS . . . . . . . . . . . . . . . . .(see Building sewer)

– I –

IDENTIFICATION

2019 CALIFORNIA PLUMBING CODE 489

490 2019 CALIFORNIA PLUMBING CODE

Threaded joint . . . . . . . . . . . . . . . . . . .605.1.5, 605.2.3,

605.5.2, 605.11.3, 605.12.3, 605.16.1, 705.1.3, 705.3.4, 705.4.2, 705.6.3, 705.10.2, 1208.6.10, 1208.6.11.1, 1208.6.11.4, 1309.13, A 107.3 Tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.3 Transition joint . . . . . . . . . . . . . . . . . . . . . . . . . .705.9.4 Various materials . . . . . . . . . . .605.16, 705.10, 1210.1.3 Vitrified clay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705.8 Welded joint . . . . . . . . . . . . . . . . . . . . .212.0, 605.13.2,

705.7.2, 1208.6.11.1, 1309.16, F 1101.2

– L – LABELED . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0, 301.2 LAUNDRY TUBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001.2 LAVATORIES . . . . . . . . . . . . . . . .407.0, 422.9, Table 702.1,

E 501.4 LAVATORIES IN SETS . . . . . . . . . . . . . .214.0, Table 702.1 LAVATORY, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . .214.0 LAVATORY FAUCETS

Common and public use areas . . . . . . . . . . . . . .407.2.3 Maximum flow rate . . . . . . . . . . . . . . . . .407.2.1, 407.2.2 Metering faucet . . . . . . . . . . . . . . . . . . . . . . . . . .407.2.4 Public . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .407.2.1 Residential . . . . . . . . . . . . . . . . . . . . . . . . . . . . .407.2.2 LAWN SPRINKLERS . . . . . . . . .Table 610.3, Table A 103.1 LEAD

Allowable lead contents . . . . . . . . . . . . . .604.2, 604.2.1 Bends and traps . . . . . . . . . . . . . . . . . . . . .701.5, 906.6 Closet rings . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.1 Flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1102.3.1 Roof drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1102.1 Sheet . . . . . . . . . . . . . . . . . . . . . . .408.7.3, 701.5, 906.6 Water supply . . . . . . . . . . . . . . . . . . . . . .604.2, 604.2.1 LEADERS . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0, 1101.4.3,

1101.12.1, 1101.13.1, 1101.15, 1101.16, 1101.16.1, 1103.0, Table 1103.1 LIMITED-DENSITY OWNER-BUILT

RURAL DWELLING . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0 LIQUEFIED PETROLEUM

GAS (LP-GAS) . . . . . . . . . . . . . . . . . . . . . .214.0, 1202.1,

1208.5.1, 1208.6.7, 1208.6.12.4, 1210.8, 1212.11, E 401.2, E 403.1, E 403.10 LIQUID WASTES . . . . . . . . . . . . . . . . .214.0, 303.0, L 302.0 LISTED . . . . . . . . . . . . . . . . . . . . . . . .214.0, 301.2, 402.6.2,

409.6, 412.1.1

LISTING AGENCY . . . . . . . . . . . . . . . . . . . . . . .214.0, 301.2

LOCATION OF

Backwater valves . . . . . . . . . . . . . .710.1, 710.3, 710.4,

710.6, 1006.0, 1101.6.4,

1503.2.3, 1503.9.1

Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . .308.0, 402.0

Fuel gas meters . . . . . . . . . . . . . . . . .1208.7 – 1208.7.3,

E 402.4 – E 402.4.2

Fuel gas valves . . . . . . . . . . . . . . . . .1210.9 – 1210.9.4,

1212.5.3, 1212.6, E 402.3

Interceptors and separators . . . . . . . . . . . .1009.3, 1009.5

Medical gas and

medical vacuum system valves . . . . . . . . . . .1312.1.1

Plumbing system or sewer on lot . . . . . . . .307.0, 721.1,

Table 721.1

Private sewage disposal system . . . . . . . . . . . . .H 101.8

Water heaters . . . . . . . . . . . . . . . .504.1, 504.3 – 504.6,

507.2, 507.5, 507.10,

507.12 – 507.15, 507.25,

507.26, 507.27, 508.0

LOT, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0

LOW HAZARD . . . . . . . . . . . . . . . . . . . . .214.0, Table 603.2

LOW VOC CEMENT, DEFINITION . . . . . . . . . . . . . . . . .214.0

LOW VOC ONE-STEP

CEMENT, DEFINITION . . . . . . . . . . . . . . . . . . . . . . .214.0

LOW VOC PRIMER, DEFINITION . . . . . . . . . . . . . . . . .214.0

– M –

MACERATING TOILET SYSTEMS . . . . . . . . .215.0, 710.13

MAIN, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0

MAINTENANCE . . . . . . . . . .102.2, 102.3, 1009.6, 1014.1.2,

1501.5, Table 1501.5, 1501.6,

1504.6.4, 1505.15, Table 1505.15,

1504.11, 1601.5, Table 1601.5,

K 101.5, K 101.5.1, Table K 104.3(2),

L 501.5, L 504.2

MALLEABLE IRON . . . . . . . . .604.7, Table 604.1, Table 701.2

MANUFACTURED/MOBILE

HOME PARKS AND

RECREATIONAL VEHICLE PARKS . . . . . . . .Appendix E

MARKINGS . . . . . . . . . . . . . . . . . . . . . . .(see Identification)

MATERIALS

Alternate . . . . . . . . . . . . . . . . . . . . . . . . .301.3, H 501.13 Approval required . . . . . . . . . . . . . . . . . . . . . . . . . .301.2 Approved standards . . . . . . . . . . . . . . . . . . . . . .301.2.2 Backwater, gate, or ball valves . . . . . . . . . . . . . . .710.6 Building drains . . . . . . . . . . . . . . . . . . . . . . .Table 701.2 Building sewers . . . . . . . . . . . .Table 701.2, 715.1, 720.0 Cesspools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 801.0

Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.1

Drainage piping, joints,

and fittings . . . . . . . . . . . . . . . . . . .701.2, Table 701.2,

701.3, 705.0

2019 CALIFORNIA PLUMBING CODE 491

Fuel gas piping, joints,

and fittings . . . . . . . . . . . . . . . . . . .1208.6 – 1208.6.2,

1208.6.3 – 1208.6.5,

1208.6.10, 1208.6.11, 1208.6.12

Marking of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301.2.1

Medical gas and medical vacuum . . . . . . . . . . . .1308.0

Potable water piping,

joints, and fittings . . . . . . . . . . . . . . . . . . . .604.0, 605.0

Rainwater catchment system . . . . . . . . . . . . . . . .1602.7

Septic tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 501.3

Storm drainage pipe . . . . . . . . . . . . . . . . . . . . . . .1101.4

Subsoil drain . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.4.6

Sumps or receiving tanks . . . . . . . . . . . . . . . . . . .710.8

Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1003.1

Vents (DWV) . . . . . . . . . . . . . . . . . . .Table 701.2, 903.0

MAY, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0

MEAT PACKING AND SLAUGHTERHOUSES . . . . .1010.0

Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . .717.2, 724.0

Water supply . . . . . . . . . . . . . . . . . . . . . . . .601.5, 601.8

MEDICAL GAS AND MEDICAL

VACUUM SYSTEMS . . . . . . . . . . . . . . . . . . . .Chapter 13

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1318.0

Aspirators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1303.5

Category 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Category 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Category 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Category 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .1308.2, 1311.0

Construction documents . . . . . . . . . . . . . . . . . . .1304.5

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0

Installation requirements . . . . . . . . . . . . .1304.0, 1310.0

Joints and connections . . . . . . . . . . . . . . . . . . . .1309.0

Labeling and identification . . . . . . . . . . . . . . . . .1310.11

Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1308.0

Medical air systems . . . . . . . . . . . . . . . . . . . . . . .1314.0

Medical vacuum systems . . . . . . . . . . . . . . . . . . .1315.0

Pipe sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1310.2,

Table 1310.2.1(1) – Table 1310.2.1(4)

Pressure-regulating equipment . . . . . . . . . . . . . .1315.0

Shutoff valves . . . . . . . . . . . . . . . . . . . . . . . . . . .1312.0

Station outlets/inlets . . . . . . . . . . . . . . . . . . . . . .1305.3,

Table 1305.3.1, 1316.0

Sterilizers and bedpan steamers . . . . . . . . . . . . .1303.4

System certification . . . . . . . . . . . . . . . . . . . . . . .1319.0

Testing and inspection . . . . . . . . . . . . . . . . . . . . .1318.0

Warning system . . . . . . . . . . . . . . . . . . . . . . . . . .1317.0

METALS, INTERMIXING PROHIBITED . . . . . .310.6, 604.1

METERING FAUCETS . . . . . . . . . . . . . . .407.2.4, 407.2.4.1,

417.1.2

MINIMUM STANDARDS . . . . . . . . . . . . . . . . . . . . . . . .301.2

MULCH, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . .215.0

MULCH BASIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0,

1504.0 – 1504.6.4

– N –

NATURAL GAS, SPECIFIC GRAVITY . . . . . . . . . . . .1214.1

NITROGEN, NF, DEFINITION . . . . . . . . . . . . . . . . . . .216.0

NONCOMBUSTIBLE PIPING INSTALLATIONS . . . .1405.0

NONPOTABLE WATER

Alternate water source . . . . . . . . . . . . . . . . .Chapter 15

Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . .1506.9.6

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.3

Rainwater catchment system . . . . . . . . . . . .Chapter 16

Unlawful connections to . . . . . . . . . . .603.5.11, E 502.3

NONWATER SUPPLIED URINAL,

DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216.0

NONWATER URINALS . . . . . . . . . . . . . .412.1.1, L 402.3.1

NUISANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . .102.5, 216.0

– O –

OBSTRUCTIONS

OF FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.5, 315.2

OFFSETS

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .217.0

Drainage . . . . . . . . . . . . . . . . . . . . . . .706.4, C 304.3.1,

C 304.3.2, C 304.4,

C 401.4, C 601.7

Medical gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1309.2

Prohibited use . . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.3

Venting (fuel gas) . . . . . . . . . . . . . . .509.6.2.2, 510.1.2,

510.2.4, 510.2.16

Venting (plumbing) . . . . . . . . . . . . . . . . . . . . . . . .910.5

OIL AND FLAMMABLE INTERCEPTORS . . . . . . . . .1017.0

ON-SITE TREATED NONPOTABLE

WATER SYSTEMS . . . . . . . . . . . . . . . .217.0, 601.3.3, 1506.0

Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1506.9.6

Signage . . . . . . . . . . . . . . . . . . . . . . . . . . .1501.9, 1501.9.2

ONE- AND TWO-FAMILY DWELLINGS . . . . . . . . . . . . .301.6

OPEN TRENCH WORK . . . . . . . . . . . . . . . . . . . . . . . .314.3

OPENING, EFFECTIVE,

DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207.0

OVERFLOWS . . . . . . .404.2, 413.5, 607.4, 1603.6, 1603.6.1

– P –

PATIENT CARE SPACE, DEFINITION . . . . . . . . . . . . .218.0

PENALTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106.0

PENETRATION

FIRESTOP SYSTEMS . . . . . . . . . . .218.0, 1404.3, 1405.3

PERCOLATION TESTS . . . . . . . . . . . . . . . .1504.3, H 401.0

PERMITS, REQUIRED . . . . . . .104.1, 502.1, 1501.3, 1601.3,

E 101.2, E 302.7, K 101.3, H 101.9

PERMITS FEES . . . . . . . . . . . . . . . . . . . .104.5, Table 104.5

PIPING

Drainage, changes in direction . . . . . . . . . . . . . . .706.0

Drainage, existing sewers . . . . . . . . . . . . . . . . . . .715.3

Drainage, horizontal slope . . . . . . . . . . . . .708.0, 718.1

492 2019 CALIFORNIA PLUMBING CODE

Drainage, material . . . . . . . . . . . . . . .701.2, Table 701.2,

715.1, 720.1

Exposed to sunlight,

ABS and PVC . . . . . . . . . . . . . . . . . . . . . . . . . .906.1

Fuel gas . . . . . . . . . . . . . . . . . . . . . . . . .1208.0, 1210.0

Hangers and supports . . . . . . . . . . .313.0, Table 313.3,

1210.2.4, 1210.2.4.1,

Table 1210.2.4.1,

1310.5 – 1310.5.5

Table 1310.5.4(1)

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.3

Indirect waste . . . . . . . . . . . . . . . . . . . . . . . . . . . .803.0

Joints and connections . . .(see Joints and connections)

Medical gas, material . . . . . . . . . . . . . . . . . . . . .1308.0

Plumbing vent, material . . . . . . . . . . .Table 701.2, 903.0

Protection of . . . . . . . . . . . . . . . . . . . . . . . .312.0, 718.3,

1210.1.3 – 1210.1.5

Rehabilitation of . . . . . . . . . . . . . . . . . . . . . . . . . .320.0

Sprinkler system . . . . . . . . . . . . . . . . . . . . .612.4, 612.5

Storm drainage, materials . . . . . . . . . .1101.4 – 1101.4.6

Trenching, excavation,

and backfill . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.0

Underground . . . . . . . . . . . . . . . . . . . .314.4.1, 1210.1.6

Water supply, material . . . . . . . . . . . .604.0, Table 604.1

PITS, SEEPAGE . . . . . . . . . . . . . . . . . .221.0, 714.3, 716.1,

722.2 – 722.4,

Appendix H

PLUGS, CAPS, CLEANOUT . . . . . . . . . . . . . . .707.1, 707.2

PLUMBING

Additions, alterations,

renovations or repairs . . . . . . . . . . . . . . . . . . . .102.4

Appliances . . . . . . . . . . . . . .218.0, 304.1, 310.5, 313.1,

417.2, 603.4.6, 606.5,

Table 610.3, Table 702.1,

801.7, 803.3, 806.1,

807.0, 808.1,

Table A 103.1, L 302.2

Appurtenances . . . . . . . . . . . . . . . .218.0, 304.1, 313.1,

603.4.6, Table 610.3,

Table 702.1, 814.2.1, 1505.8.2,

1505.10, 1506.9.3,

1602.9.2, Table A 103.1,

L 501.2

Connected to sewer or

private disposal systems . . . . . .304.1, 713.1, L 302.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Inspection of . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.0

Official . . . . . . . . . . .(see Authority Having Jurisdiction)

System, definition . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.3, 105.3.1

Uncovered for inspection . . . . . . . . . . . . . . . . . .105.2.1

Vent, definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Vent system, definition . . . . . . . . . . . . . . . . . . . . . .218.0

PLUMBING FIXTURES

Access . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.1, 413.2,

416.4, 422.4

Accessibility . . . . . . . . . . . . . . . . . . . . . . . .403.1, 403.2,

408.5, 408.6

Alternate materials . . . . . . . . . . . . . . . . . . .301.3, 406.3

Approved standards . . . . . . . . . . . . . . . . . . . .401.2, 408.1,

409.1, 410.1,

411.1, 412.1,

415.1, 416.1,

417.1 – 417.4,

418.1, 420.1

Back-to-back . . . . . . . . . . . . . . . . . . . . . . . . . . . . .704.2

Below curb or sewer level . . . . . . . . . . . . . .710.1, 710.2

Clearance from wall, toilet, urinal . . . . . . . . . . . . .402.5

Connections, drainage . . . . . . . . . . . . . . .304.1, 406.1,

408.4, 409.2,

415.3, 416.5,

419.2, 420.4, 704.0

Control valves . . . . . . . . . . . . . . . . . . . . . .408.3, 408.9,

601.2, 606.5 – 606.7,

1303.1, 1505.8, 1506.10

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Distance from traps . . . . . . . . . . . . . . . . . . . . . . .1001.2,

1002.2, Table 1002.2

Fixture units . . . . . . . . . . . . . . . . . . .610.3, Table 610.4,

610.7 – 610.10, Table 610.10,

702.0, Table 702.1, Table 702.2(1),

Table 702.2(2), 703.0, Table 703.2,

Table A 103.1, Table C 303.2,

Table C 303.3, C 501.4, C 501.5

Floor drains . . . . . . . . . . . . . . . . . . .408.7, 414.3, 418.0,

704.3, 801.3.2, 1003.1,

1006.0, 1007.1, 1014.3.2,

1016.1, 1017.1, 1101.11,

1505.1, 1506.1, 1602.1,

B 101.5, B 101.6.1, Table C 304.2,

Table C 304.3, E 501.6

Improper location of . . . . . . . . . . . . . . . . . . . . . . .308.0

Indirect wastes . . . . . . . . . . . . . . . . . . . . . . . . . . .804.1

Installation of . . . . . . . . . . . . . . . . .402.0, 405.3, 408.3,

408.7, 409.3, 409.6,

412.1.1, 413.1 – 413.3,

413.5, 415.4, 416.3, 418.3

Islands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0

Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.2

Material of . . . . . . . . . . . . . .401.0, 406.2 – 406.4, 408.7

Minimum number . . . . . . . . . . . . . . . . . . . . . . . . .422.0

Must be connected to sewer . . . . . . . . . . . .304.1, 713.1

Must be provided with trap . . . . . . . . . . . . . . . . . .1001.2

Overflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .404.0

Prohibited . . . . . . . . . . . . . . . . . . . . .310.5, 405.0, 910.7

Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401.2

2019 CALIFORNIA PLUMBING CODE 493

Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.5, 402.6

Size of waste for . . . . . . . . . .702.0, Table 702.1, 703.0,

Table 703.2

Special fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .406.0

Strainers and connections . . . . . . . . . . . . .407.5, 408.4

Supply fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.7

Waste connections . . . . . . . . . . . . . . . . . . .407.5, 408.4,

409.2, 415.3,

416.5, 419.2, 420.4

Water supply required . . . . . . . . . . . . . . . . . . . . . .601.2

POLLUTION . . . . . . . . . . . .218.0, 603.1, Table 603.2, 714.5

POLYVINYL CHLORIDE (PVC)

PIPE OR TUBING

Approved standards,

water supply and DWV . . . . .Table 604.1, Table 701.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Exposed to sunlight . . . . . . . . . . . . . . . . . . . . . . . .906.1

Flexible tubing for whirlpool bathtubs . . . . . . . . .409.6.1

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

Lining for shower receptors . . . . . . . . . . . . . . . . . .408.7

Roof drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1102.1

POLYETHYLENE (PE) PIPE OR TUBING

Approved standards,

water supply and DWV . . . . . . . . . . . . . .Table 604.1,

Table 701.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Fuel gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.6.5,

Table 1215.2(19) – 1215.2(23),

Table 1215.2(34) – 1215.2(36)

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

Roof drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1102.1

POLYETHYLENE-ALUMINUM-POLYETHYLENE

(PE-AL-PE) PIPE OR TUBING

Approved standards, water supply . . . . . . . .Table 604.1

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

POLYETHYLENE OF RAISED

TEMPERATURE (PE-RT) PIPE OR TUBING

Approved standards, water supply . . . . . . . .Table 604.1

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Flexible connectors . . . . . . . . . . . . . . . . . . . . . . .604.13

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

POLYPROPYLENE (PP) PIPE OR TUBING

Approved standards, water supply . . . . . . . .Table 604.1

Chemical waste . . . . . . . . . . . . . . . . . . . . . . . . . . .811.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Joining and connections . . . . . . . . . . . . . . . .(see Joints

and connections)

Roof drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1102.1

POLYVINYLIDENE FLUORIDE (PVDF)

PIPE OR TUBING

Chemical waste . . . . . . . . . . . . . . . . . . . . . . . . . . .811.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

POTABLE RAINWATER

CATCHMENT SYSTEMS . . . . . . . . . . . . . . . .Appendix K

POTABLE WATER

Connections . . . . . . . . . . . . . .603.4.4, 603.5.6, 603.5.7,

603.5.10 – 603.5.12, 603.5.14,

603.5.20, 801.5, 1303.5

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Devices or assemblies . . . . . . . . . . . . . . . . . . . . .603.2

Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.9

Protection from

heat transfer medium . . . . . . . . . . . .505.4.1, C 302.2

Heating . . . . . . . . . . . . . . . . . . . . . . . . . . .501.1, L 601.1

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.3

Joints and fittings . . . . . . . . . . . . . . .604.2, 604.6, 605.0

Materials . . . . . . . . . . . . . . . . . . . . . .604.1, Table 604.1

Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.5.17

Protection of . . . . . . . . . . . . . . . . . . . . . . . .602.0, 603.0

Sizing piping . . . . . . . . . . . . . . . . . . .610.0, Appendix A

Supply required . . . . . . . . . . . . . . . . . . . .601.2, E 302.1

Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .607.0

Unlawful connection to . . . . . . . .602.0, 603.5.11, 1503.3,

1505.4, 1506.4, 1602.4,

E 502.3, K 102.2,

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.0

PRE-RINSE SPRAY VALVES . . . . . . . . . . . . .420.3, L 201.0

PRESSED FITTINGS . . . . . . . . . . . . . . . . .605.1.3, 605.1.3.2,

605.13.1, 605.16.1, 705.7.1

PRESSURE DRAINAGE

CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .805.0

PRESSURE, EXCESSIVE, WATER . . . . . . . . . . . . . . .608.2

PRESSURE-LOCK-TYPE

CONNECTION, DEFINITION . . . . . . . . . . . . . . . . . .218.0

PRESSURE LOSSES, WATER . . . . . . . . . . . . . . . . . .610.2

PRESSURE REGULATORS

Firefighter breathing air

replenishment systems . . . . . . . . . . . . . . . . . .F 501.8

Fuel gas . . . . . . . . . . . . . . . . . . .507.20, 507.21, 507.22,

1202.1, 1208.8, 1210.9, 1215.1.3

Medical gas and

medical vacuum . . . . . . . . . . . . . . . .1309.8.2, 1313.4

Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.2

PRESSURE-RELIEF VALVES

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0

Differential,

backflow prevention . . . . . . . . . . .603.3.7, Table 603.2

Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.5

Firefighter breathing

air replenishment systems . . . . . . . . . . . . . . .F 501.1,

F 501.8, F 701.3

494 2019 CALIFORNIA PLUMBING CODE

Medical gas

and medical vacuum . . . . . . .1312.3, 1313.4, 1313.7,

1315.2 – 1315.2.2

Water Heaters . . . . . . . . . . . . . . . . .504.4, 504.6, 505.2

Water Supply . . . . . . . . . . . . . . .608.2 – 608.4, E 302.5

PRIMARY SETTLING TANKS . . . . . . . . . . . . . . . . . . .902.1

PRIVATE OR PRIVATE USE, DEFINITION . . . . . . . . .218.0

PRIVATE SEWAGE

Capacity of system . . . . . . . . . .H 101.7, H 201.0, H 701.1

Construction . . . . . . . . . . . . . . . . . . . .H 501.3, H 601.9,

H 701.3, H 801.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0

Design . . . . . . . . . . . . . . . . . . . . . . . . .H 101.6, H 501.2,

H 501.11, H 901.4, H 901.7

Disposal systems . . . . . . . . . .218.0, 713.2, Appendix H

General requirements . . . . . . . . . . . . . . . . . . . . .H 101.2

Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.0

Location . . . . . . . . . . . . . . .721.0, H 101.8, Table H 101.8

PRIVATE WATER SUPPLY . . . . . . . . .602.2, 602.4, E 302.1

PROHIBITED

Appliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.5

Concealed gas piping . . . . . . . . . . .1210.3.2, 1212.3.1,

1212.5.3, 1310.7

Concealment of defects . . . . . . . . . . . . . . . . . . . . .309.2

Concealment of work

before inspection . . . . . . . . . . . . . . . . . .105.0, 503.2,

1203.0, 1406.1

Connections

Sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .714.3

Waste . . . . . . . . . . . . . . . . . .310.3, 404.2, 603.4.4,

805.1, 807.3, 810.1

Water . . . . . . . . . . . . . . . . .602.0, 603.4.4, E 502.3

Copper tubing, use of . . . . . . . . . . .903.2.2, 1208.6.4.2

Damage to drainage system . . . . . .305.1, 312.3, 312.6

Devices . . . . . . . . . . . . . . . . . . . . . . . . . .310.5, 1210.10

Direct drainage . . . . . . . . . . . . . . . . . . . .603.4.4, 805.1,

807.3, 810.1

Discharge . . . . . . . . . . . . . . . .509.1.2, 714.2, 1602.9.5,

K 104.2

Fittings . . . . . . . . . . . . . . . . . . . . . . .310.0, 315.2, 604.2

Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.5, 405.0

Food waste disposal,

connection to . . . . . . . . . . . . . . . . . . . . . . . . .1014.1.3

Fuel gas piping . . . . . . . . . . . . . . . .1208.6.4.3, 1210.2.3

Industrial waste disposal . . . . . . . . . . . . . . . . . . . .306.2

Installations . . . . . . . . . . . . . . . . . . . . . . . .312.2, 602.1

Joints and connections . . . . . . .315.2, 605.1.4, 605.6.2,

1309.10.3, 1309.18

Locations . . . . . . . . . . . . . . . . .415.4, 1210.2.3, 1503.6

Materials . . . . . . . . . . . . . . .F 801.4, H 501.10, H 501.13,

K 103.1.1, L 503.1.1

Medical gas and

medical vacuum piping . . . . . . . . . . . . . . . . .1310.4.1

Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1213.1.6

Pipes in concrete or masonry . . . . . . . . . . . . . . . .312.2

Practices . . . . . . . . . . . . . . . . . . .102.4.1, 104.1, 106.0,

303.1, 305.1,309.2,

310.0, 312.2, 312.6,

502.1,602.0, 714.1,

1101.3, 1204.3, 1205.0,

1206.3, 1501.3,

K 101.3, L 302.1

Receptors, location of . . . . . . . . . . . . . . . . . . . . . .804.1

Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.4

Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.0

Trough type urinals . . . . . . . . . . . . . . . . .405.2, E 501.5

Urinals and water closets on a

combination waste and vent system . . . . . . . . .910.7

Vent termination . . . . . . . . . . . . . . . . . . . . . . . . . .906.3

Water piping . . . . . . . . . . . . . . . . . .312.6, 604.2, 720.1

PROPERTY LINE, TERMINATION OF VENT . . . . . . .906.2

PROTECTION FROM

Corrosion . . . . . . . . . . . . . . . . . . . .312.1, 312.4, 402.3,

402.6.2, 402.6.3, 506.9,

507.5, 508.1.2, 509.5.3,

509.7, 509.10.1,

509.10.1.2, 509.10.1.3,

603.5.14.1, 603.5.14.2,

609.3, 710.4, 710.8, 810.2,

811.2, 814.1, 1004.1,

1208.6.4.3, 1208.6.9, 1208.7.1.1,

1210.1.3, 1210.2, 1210.3.4,

1212.1, 1310.3, 1310.4,

1313.7, 1503.9.1, 1603.2,

C 501.3, E 301.3.2, E 403.5,

E 403.6, E 403.8.2, E 403.8.4,

E 502.7, F 501.4, H 501.3,

H 501.13, K 105.2, K 106.4.2

Decay . . . . . . . . . . . . . . . . . . . . . . . . .1503.9.1, 1603.2,

H 501.3, K 105.2

Freezing . . . . . . . . . . . . . . . . . .312.6, 603.4.7, 1210.1.4,

1210.6.1, 1603.13,

Seismic . . . . . . . . . . . . . . . . . . . . . . . . . .507.2, 1310.5.5

PROTECTION OF

Animals and Insects . . . . . . . . . . . . . . . . . . . . .1503.9.3

Fuel gas meters . . . . . . . . . . . . . . . . .1208.7.1, 1208.7.3

Piping materials and structures . . . . . . . . . . . . . .312.0,

314.4, 1210.1

Potable water supply . . . . . . . . . . . . . . . . . . . . . . .603.0

Trap seals . . . . . . . . . . . . . . . . . .1002.0, 1005.1, 1007.0

Water heaters . . . . . . . . . . . . . . . . . . . . .504.3 – 504.6,

505.2, 507.2,

507.12 – 507.15

PSYCHIATRIC SERVICES . . . . . . . . . . . . . . . . . . . . . .322.0

PUBLIC OR PUBLIC USE, DEFINITION . . . . . . . . . . .218.0

PUBLIC SEWER, DEFINITION . . . . . . . . . . . . . . . . . .218.0

2019 CALIFORNIA PLUMBING CODE 495

496 2019 CALIFORNIA PLUMBING CODE

Sewer . . . . . . . . . . . . . . . . . . . . . . . .E 504.6, E 504.6.2

Water . . . . . . . . . . . . . . . . . . . . . .220.0, 408.10, 610.1,

1502.3.3, A 103.1, A 106.1,

A 106.2, A 108.1, E 302.1, E 302.4,

E 503.2, E 505.4, L 503.3.7

RODENTPROOFING . . . . . . . . . . . . . . . . . . . . . . . . .312.12

ROOF DRAINS . . . . . . . . . . . . . .220.0, 1101.12.1, 1101.12.2,

1101.15, 1102.0, Table 1103.1,

1106.3, 1107.2.1, K 105.12

ROOF DRAINAGE . . . . . . . . . . . . . . . .1101.12, Appendix D

Combined . . . . . . . . . . . . . . . . . . . . . . . . .1101.12.2.2.2

Controlled-flow . . . . . . . . . . . . . . . . . . . . . . . . . . .1105.0

Primary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.12.1

Secondary . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.12.2

Separate piping . . . . . . . . . . . . . . . . . . . . .1101.12.2.2.1

ROOF GUTTERS . . . . . . . . .1101.12.1, 1103.3, Table 1103.3,

1602.6, 1602.7.2,

1603.11, 1603.16, K 103.2,

K 104.6, K 106.5

ROOF, TERMINATION OF

VENTS ABOVE . . . . . . . . . . . . . . .509.6.1, 905.4, 906.1,

906.3, 906.5, 906.7

ROOF WASHERS . . . . . . . . . . . . . . . . . . . . .220.0, K 106.4

ROUGHING-IN, DEFINITION . . . . . . . . . . . . . . . . . . . .220.0

– S –

SADDLE, SLEEVE, BAND OUTLETS,

PROHIBITED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.1

SAFETY AND HEALTH . . . . . . . . . . . . . . . . . . . . . . . .102.5

SAFETY DEVICES . . . . . . . . . .504.4 – 504.6, 505.2, 608.0

SAND INTERCEPTORS . . . . . . . . . . . . . . . . . . . . . . .1016.0

Cleanout for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.7

Construction and size . . . . . . . . . . . . . . . . . . . . .1016.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.3

Discharge . . . . . . . . . . . . . . . . . . . . . . . . .1009.7, 1016.1

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.5

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.6

Required . . . . . . . . . . . . . . . . . . . . . . . . .1009.1, 1016.1

Vent, required and

not required . . . . . . . . . . . . . . .902.1, 1002.1, 1016.4

Water seals . . . . . . . . . . . . . . . . . . . . . . .1009.3, 1016.4

SANITARY TEES,

PERMISSIBLE USE . . . . . . . . . . . . . . . . .706.2, C 601.3,

C 601.4

SCREW JOINTS . . . . . . . . . . . . . . . . . . . . . .1205.2, 1206.3

SCRUB SINK, DEFINITION . . . . . . . . . . . . . . . . . . . . . .221.0

SDR, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

SEAL, TRAP . . . . . . . . . . . . . . . . .222.0, 315.1, 412.1.1, 413.4,

901.3, 912.2, 1005.0, 1007.0,

C 601.1, E 501.6

SEAM, WELDED, DEFINITION . . . . . . . . . . . . . . . . . .221.0

SECONDARY INTERCEPTORS . . . . . . . . . . . . . . . . .902.1

SECONDARY TEMPERATURE

LIMITING DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . .505.2

SEDIMENT TRAPS . . . . . . . . . . . . . . . . . . .1210.6.2, 1212.9

SEEPAGE PITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 701.0

Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .722.2

Area of disposal . . . . . . . . . . . . . . . . . . . . . . . . .H 301.0

Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 701.1

Combination with disposal fields . . . . . . . . . . . .H 601.4

Connection to sewer prohibited . . . . . . . . . . . . . . .714.3

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 701.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Location . . . . . . . . . . . . . . .721.0, H 101.8, Table H 101.8

Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .716.1

Multiple installations . . . . . . . . . . . . . . . . . . . . . .H 701.2

Soil absorption . . . . . . . . . . . .Table H 201.1(2), H 301.1

SELF-CLEANING TRAPS . . . . . . . . . . . . . . . . . . . . .1003.1

SEPARATE PLUMBING AND

DRAINAGE SYSTEMS . . . . . . . . . . . . . . . . . . . . . . .311.0

SEPARATE VENTING . . . . . . . . . . . . . . . . . . . .811.6, 906.3

SEPARATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.0

SEPTIC TANKS

Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .722.2

Capacity . . . . . . . . . . . . . . . . . .H 201.0, Table H 201.1(1)

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 601.7

Connections to sewer prohibited . . . . . . . . . . . . . .714.3

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 501.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Location of . . . . . . . . . . . . . . . . . .H 101.8, Table H 101.8

Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .716.1

Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 501.8

SERVICE, AUTHORITY TO RENDER GAS . . . . . . . .1205.0

SERVICES/SYSTEMS AND UTILITIES . . . . . . . . . . . . .310.12

SETTING FIXTURES . . . . . . . . . . . . . . . . . . . . . . . . . .402.5

SETTLING TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.1

SEWAGE

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Disposal of . . . . . . . . . . . . . .303.0, 709.0, 713.0, 714.0,

1014.1, 1503.2, E 301.1,

E 504.1, L 302.1

SEWAGE DISPOSAL

SYSTEMS, PRIVATE . . . . . . . . . . . . . .1010.5.2, Appendix H

Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .722.2

Commercial food waste grinders . . . . . . . . . . . . . .714.4

Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 101.6

Holding tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . .714.5

Inspection and testing . . . . . . . . . . . . . . . . . . . .H 1001.0

Location . . . . . . . . . . . . . . . . . . . . . . . . . . .307.0, 721.0,

H 101.8, Table H 101.8

Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .715.0

Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .904.1

SEWAGE EJECTOR . . . . . . . . .221.0, 710.2, 710.3, 710.10

SEWAGE PUMP . . . . . . . . . . . . .221.0, 710.2, 710.3, 710.13

SEWERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 7

2019 CALIFORNIA PLUMBING CODE 497

Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .722.0

Adjacent to walls . . . . .312.3, 715.1, 718.3, Table 721.1

Available . . . . . . . . . . . . . . . . . . . . . . . . . . .713.2, 713.4

Building, definition . . . . . . . . . . . . . . . . . . . . . . . . .204.0

Building, material of . . . . . . . . .701.0, Table 701.2, 715.0

Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.0

Connection to, required . . . . . . . . . . . . . . .304.0, 713.0

Construction of . . . . . . . . . . . . . . . . . . . . .715.0 – 719.0

Damage to . . . . . . . . . . . . . . . . . . . . .305.1, 306.1, 714.1,

718.3, 811.1, 1009.1

Depth of . . . . . . . . . . . . . . . . . . . . . .312.3, 718.3, 720.1

Easements for . . . . . . . . . . . . . . . . . . . . . . . . . . . .721.2

Ejectors . . . . . . . . . . . . . . . . . . . . .710.2, 710.3, 710.10

Existing . . . . . . . . . . . . . . . . . . . . .102.4.1, 713.6, 715.3

Grade and support of . . . . . . . . . . . . . . . . .708.0, 718.0

Gray water . . . . . . . . . . . . . . . . . . . . .1503.0 – 1503.9.2

Independent system required . . . . . . . . . . . . . . . . .311.0

Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.0

Joints and connections . . . . . . . . . . . . . . . . . . . . .705.0

Location . . . . . . . . . . . . . . . . . . . . . .307.0, 312.3, 718.3,

720.0, 721.0, Table 721.1

Materials . . . . . . . . . . . . . . . . . . . . . .701.0, Table 701.2,

715.0, 720.1

Mobile home and

recreational vehicle parks . . . . . . . . .E 301.0, E 504.0

Must be on same lot as building . . . . . . . . .307.1, 721.1

Private sewage disposal systems . . . . . . . .713.0, 714.0

Prohibited connections . . . . . . . . . . . . . . .603.4.4, 714.2,

714.3, E 502.7

Reclaimed (recycled) water . . . . . . . . . . . . . . . .1505.11

Required . . . . . . . . . . . . . . . . . . . . . . . . . . .709.1, 713.0

Size of building . . . . . . . . . . . . . . . .Table 702.1, 703.2,

Table 703.2, 710.5,

717.0, Table 717.1, C 304.2,

Table C 304.2, C 601.9,

Storm water . . . . . . . . . . . . . . . . . . . . .1101.3, 1101.16.2

Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.2

Testing of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0

Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .904.1

Water pipe in trench . . . . . . . . . . . . . . . . . .609.2, 720.0

SHALL, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

SHEET LEAD . . . . . . . . . . . . . . . . . . . . . . . . .408.7, 408.7.3,

701.5, 906.6

SHIELDED COUPLINGS . . . . .221.0, Table 313.3, 705.2.2,

SHOCK ARRESTER, DEFINITION . . . . . . . . . . . . . . .221.0

SHORT TURN ¹ ⁄4 BEND, PROHIBITED . . . . . .310.5, 706.0

SHOULD, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . .221.0

SHOWERS

Approved standards . . . . . . . . . . . . . . . . . . . . . . .408.1

Control valves . . . . . . . . . . . . . . . . . . . . . . .408.3, 601.2

Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . .1503.8.2.2

Finished curb or threshold . . . . . . . . . . . . . . . . . . .408.5

Gang . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0, 408.3,

L 201.0, L 402.6.1

Mobile home and recreational

vehicle parks . . . . . . . . . . . . . . . . . . . . . . . . . .E 501.7

Pans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.7

Public floors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.8

Receptors . . . . . . . . . . . . . . . . . . . . . . . . . .408.6, 408.7

Stall or compartment . . . . . . . . . . . . . . . . . . . . . . .408.6

Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.7.5

Valve and head location . . . . . . . . . . . . . . . . . . . .408.9

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417.2, 417.3

Waste outlet or drains . . . . . . . . . . . . . . . . .317.1, 408.4

Water consumption . . . . . . . . . . . . . . . . .408.2, L 402.6

SHUTOFF VALVES

Fuel gas . . . . . . . . . . . . . . . . .507.8, 509.5.7.1, 1208.13,

1210.2.2.1, 1210.7.2, 1210.11,

1212.3.1, 1212.3.2, 1212.5.3,

1212.6, 1212.7, 1212.9, 1213.2.5,

1213.6.1.4, E 402.3, E 402.4.2,

E 403.0, E 403.9, E 403.13, E 404.5

Medical gas and

medical vacuum . . . . . . . . . . . .1311.2, 1311.3, 1311.4,

1311.7, 1311.8, 1311.10,

1313.2.2, 1314.2

Sewage. . . . . . . . . . . . . . . . . . . . . . . 710.12.1, 710.13.2

Water . . . . . . . . . . . . . . . . . . . . . . .504.6, 606.2, 606.3,

608.4, 609.8, E 302.3,

L 402.3.1, L 404.6,

L 410.3, L 413.4

SIGNAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1505.12

Access door . . . . . . . . . . . . . . . . . . . . . . . . . . .1505.8.2

Commercial, industrial, Institutional,

and Residential . . . . . . . . . . . . . .1501.9.1, 1505.12.1

Equipment Room . . . . . . . . . . . . . . .1501.9.2, 1505.12.3

Tank Type Toilet . . . . . . . . . . . . . . . . . . . . . . . .1505.12.2

SIMPLE SYSTEM, DEFINITION . . . . . . . . . . . . . . . . . . .221.0

SINGLE FAMILY DWELLINGS

Hose bibbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1501.11

SINGLE-STACK VENT SYSTEMS . . . . . . . . . . . . . .C 601.0

SINKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.0

Approved standards . . . . . . . . . . . . . . . . . . . . . . .420.1

Clinical . . . . . . . . . . . . . . . . . . . . . .205.0, 413.1, 1303.7

Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .421.0, B 101.2

Island . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.1

Laundry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.4

Prohibited types . . . . . . . . . . . . . . . . . . . .405.3, B 101.2

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.4

Special use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .406.2

Three-compartment . . . . . . . . . . . . . . . . . . . . . . .1001.1

SIZE OF

Building sewers . . . . . . . . . . . .703.2, 717.0, Table 717.1

Cesspools . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix H

Chimneys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.5

498 2019 CALIFORNIA PLUMBING CODE

Circuit venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .911.0

Combination waste

and vent piping . . . . . . . . . . . . . . . . .910.0, Appendix B

Combustion air openings . . . . . . . . . . . . .506.3 – 506.5

Condensate pipe . . . . . . . . . . . . . . . .814.3, Table 814.3

Disposal fields . . . . . . . . . . . . . . . . . . . . . . .Appendix H

Drainage piping . . . . . . . . . . . . . . . .Table 702.1, 703.0,

Table 703.2, C 304.0,

E 302.2, E 504.4

FOG disposal systems . . . . . . . . . . . . . . . . . . . . .1015.3

Fuel gas piping systems . . . . . . . . . . . . .1208.4, 1214.0,

SLAUGHTERHOUSES . . . . . . . . . . . . . . . . . . . . . . . .1010.0

SLIP JOINTS . . . . . . . . . . . . . . . . . . . . . . . . .221.0, 402.10,

509.10.9, 605.14,

705.9.1, 705.9.3, 1003.2

SLOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Grade)

SOIL PIPE . . . . . . . . .221.0, 310.2, 310.4, 402.6.1, 402.6.3,

Table 701.2, 701.2(6), 722.2, 1002.4,

SOIL POROSITY . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 101.2

SOLDER, BUSHINGS . . . . . . . . . . . . . . . .701.7, Table 701.7

SOLDER JOINTS . . . . . . .212.0, 309.2, Table 313.3, 402.6,

605.1.3.1, 605.1.4, 605.16.1,

2019 CALIFORNIA PLUMBING CODE 499

Hot water . . . . . . . . . . . . . . . . . . . . .505.2, 608.6, 608.7,

L 502.2, L 503.3.2, L 503.3.7

Potable water . . . . . . . . . . . . . . . . . . . . . . . . . . .E 502.7

Rainwater . . . . . . . . . . . . . . . . . . . . . .1602.7.3, 1603.0,

K 102.2, K 103.3, K 105.0

Vacuum drainage . . . . . . . . . . . . . . . . . . . . . .C 501.2.1

STORM DRAINAGE SYSTEMS . . . . .Chapter 11, Appendix D

STORM DRAINS . . . . . . . . . . . . . . . .221.0, 1101.4.4, 1101.6,

1101.11, 1101.12, 1101.13,

1101.15, 1103.0, 1104.1

STORM SEWERS . . . . . . . . . . . . . . . . . . . . . . .221.0, 715.3,

1101.2, 1101.4.5,

1101.12.2.2.2,

1101.13.1, 1103.2, 1104.1

STRAINERS

AND CONNECTIONS . . . . . . . . . . . . . . . . . .407.5, 408.4,

810.4, 1012.1, 1102.2

S-TRAP PROHIBITED . . . . . . . . . . . . . . . . . . . . . . . .1004.1

STREET MAIN;

(SEE WATER MAIN) . . . . . . . . . .225.0, 608.1, 608.3, 610.7,

Table 721.1, Table 1503.4, A 104.2,

A 104.4, Table H 101.8

STRUCTURAL

CONDITION SAFETY . . . . . . . . . . . . . . . . .312.2, 312.11

SUBMITTAL OF PLANS . . . . . . . . . . . .103.3, 104.3, 104.3.2,

104.3.3, 301.5.3, 811.1,

910.2, 1105.1, 1304.5,

1304.6, 1505.2.1, 1602.2,

C 301.1, C 501.1,

E 101.2, H 501.1, K 101.3.1

SUBSOIL DRAINS . . . . . . . . . . . . . . . . . . . .221.0, 1101.4.6,

Table 1101.4.6, 1101.6,

1101.8, 1101.9

SUBSOIL

IRRIGATION FIELDS . . . . . . . . . . . . . . . . .221.0, 1503.2.1,

Table 1503.4, 1504.2,

1504.5, Table 1504.5.3

SUBSTITUTE MATERIALS . . . . . . . . . . . . . . . . . . . . .301.3

SUBSURFACE

DISPOSAL FIELDS . . . . . . . . . . . . . . . . .1504.0, H 101.2

SUBSURFACE

IRRIGATION FIELDS . . . . . . . . . . . . . . . .221.0, 1503.2.1,

1504.5 – 1504.5.3

SUDS RELIEF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .711.0

SUMPS

Boiler room, installation . . . . . . . . . . . . . . .810.1, 810.3

Building, backwater

devices . . . . . . . . . . . . . . .710.1, 710.3, 710.4, 710.6

Building drainage

systems below sewer level . . . . . . . . . . . . . . . . . . .710.2

Condensers . . . . . . . . . . . . . . . . . . . .810.0, Table 810.1

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .810.2

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Macerating toilet systems . . . . . . . . . . . . . . . . .710.13.1

Pump connection permitted . . . . .710.2 – 710.5, 710.9,

805.1, 1101.6.2, 1101.7

Pump discharges, conversion

to fixture units . . . . . . . . . . . . . . . . . . . . .702.3, 710.5

Sewage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .710.2

Sizing, sewage

ejector and pumps . . . . . . . . . . . . . . . . . . . . . . .710.3

Storm drainage . . . . . . . . . . . .1101.6.2, 1101.6.3, 1101.7,

1101.10, 1101.11, 1101.14

Vents . . . . . . . . . . . . . . . . . . . . .710.7, 710.10, 710.13.3,

810.1, Table 810.1

Water supply inlets . . . . . . . . . . . . . . . . . . . . . . .603.5.5

SUPPLY, WATER

Fittings, fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .402.7

Fixture, definition . . . . . . . . . . . . . . . . . . . . . . . . . .208.0

Fixture units . . . . . . . . . . . . . . . . . . .610.3, Table 610.3,

610.7 – 610.10, Table 610.10,

Table A 103.1, C 303.2, C 501.5,

E 302.1, E 302.2,

E 302.2.2, L 402.3.1

Hot water . . . . . . . . . . . .503.3.4, 601.2, 602.1, 603.4.5,

603.5.10, 608.7, 609.1, 609.4,

610.3, Table 610.3, 610.12.1,

610.12.2, Table A 103.1,

Table C 303.2, L 502.5,

L 502.7 – L 502.7.3

Materials . . . . . . . . . . . . . . . . . . . . .604.0, Table 604.1,

1503.9.2, 1505.6, 1506.6,

1602.7, K 103.4

Nonpotable water . . . . . . . . . . . .601.3, 603.5.11, 1506.6

Pipe, size of . . . . . . . . . . . . . . . . . . .610.0, Table 610.3,

Table 610.4, Table A 103.1,

Table C 302.2, Appendix M

Potable water, protection . . . . . . . . . .409.5, 410.2, 412.2,

414.2, 419.3, 602.0,

603.0, 1303.5, 1503.3,

1505.4, 1506.4, 1602.4,

E 502.3, K 101.9,

K 102.2, L 411.2

Pressure . . . . . . . . . . . . . . . . .608.0, 1603.10, A 104.3,

E 302.2.3, E 502.5, K 105.11

Quality . . . . . . . . . . . . . .601.2, 1501.7, 1506.7, 1505.14,

1506.9.2, 1601.7, 1602.9.6,

Table 1602.9.6, 1603.12,

E 302.1, K 101.7,

K 104.3, K 106.0

Quantity . . . . . . . . . . . . . . . . . . . .413.1 – 413.4, 416.2,

419.3, 610.3, E 302.1

Risers . . . . . . . . . . . . . . . . . . . . . . . . . .408.10, E 302.1

Tanks, water . . . . . . . . . . . . . . . . . . . . . .603.5.5, 608.1

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.4

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.0

500 2019 CALIFORNIA PLUMBING CODE

SUPPORTS . . . . . . . . . . . .221.0, 313.0, Table 313.3, 402.4,

507.3, 507.3.1, 507.4, 507.19,

509.5.8, 509.6.4, 509.7.5, 509.10.8, 609.1, 718.2, 906.4, 1208.7.2, 1208.14.1, 1210.2, 1210.2.4, Table 1210.2.4.1, 1310.5, Table 1310.5.4(1), E 402.4, E 404.2, F 901.4, H 601.3, L 501.2,

SURFACE WATER,

DISCHARGE . . . . . . . . . . . . . . . . . . . . . . . .306.2, 714.2,

811.1, 1101.1, 1101.11

SURGE TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

SWIMMING POOLS, SPAS,

AND HOT TUBS . . . . . . . . . . . .603.5.5, 603.5.20, 813.0,

L 407.1, L 503.3.6

SYSTEMS

Chimney venting . . . . . . . . . . . . . . . .509.5.5, 509.6.2.4

Circuit venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .911.0

Clothes washer . . . . . . . . . . . . . . . . . . . . . . . . .1503.1.1

Combination waste and vent . . . . . . . . . . .205.0, 910.0,

Appendix B

Complex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1503.1.3

Defective, testing of . . . . . . . . . . . . . . . . . . . . . .105.3.1

Dialysis water . . . . . . . . . . . . . . . . . . .603.5.18.1, 614.0

Direct-vent . . . . . . . . . . . . . . . . . . . . . .509.6.1, 509.8.2

Durham, definition . . . . . . . . . . . . . . . . . . . . . . . . .206.0

Engineered . . . . . . . . . . . . . .509.10.7.1, 912.0, C 201.1

Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.22,

509.3.4, 509.6.1

Fire protection (protection from) . . . . . . . . . . . .603.5.14

Firefighter breathing

air replenishment . . . . . . . . . . . . . . . . . . .Appendix F

Firestop . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 14

FOG disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . .1015.0

Fuel gas piping . . . . . . . . . . . . . . . .507.18, Chapter 12,

E 401.0 – E 406.4

Fuel gas venting . . . . . . . . . . .509.0, Table 509.4, 510.0

Gray water . . . . . . . . . . . . . . . . . . . . . . .601.3.3, 1503.0

Independent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .311.0

Lightning protection . . . . . . . . . . . . . . . . . . . . . . .1211.4

Macerating toilet . . . . . . . . . . . . . . . . . . . . . . . . .710.13

Mechanical draft . . . . . . . . . . . . . . . . . . .509.3.3, 509.8,

509.10.3.2, 509.10.6

Medical gas

and medical vacuum . . . . . . . . . . .319.0, Chapter 13

Natural draft venting . . . . . . . . . . . . . . . . . . . .509.6.2.1

On-site treated nonpotable . . . . . . . . . . .601.3.3, 1506.0

Outdoor recycled water supply . . . .1501.1.1.1, 1501.1.1.2

Plumbing vent, definition . . . . . . . . . . . . . . . . . . . .218.0

Plumbing venting . . . . . . . . . .710.7, Chapter 9, C 401.0

Potable water

(definition) . . . . . . . . . . . . . . . . . . .218.0, Appendix A,

E 302.1 – E 302.8

Private sewage disposal . . . . . . . . .713.2, 713.3, 713.5,

714.0, 716.1, 723.1,

904.1, Appendix H

Pure water process . . . . . . . . . . . . . . . . . . . . . .603.5.18

Rainwater catchment . . . . . . .220.0, 601.3.3, Chapter 16,

Appendix K, L 501.0

Reclaimed (recycled) . . . . . . . . . . . . . . .601.3.3, 1503.3,

1505.0, 1506.4, 1602.4

Sanitary drainage . . . . . . . . . . . . . . . . . . . . . .Chapter 7,

E 301.0 – E 301.4.1,

E 504.1 – E 504.5

Simple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1503.1.2

Single-stack vent . . . . . . . . . . . . . . . . . . . . . . . .C 601.0

Sprinkler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .612.0

Storm water drainage . . . . . . . .Chapter 11, Appendix D

Ultraviolet water treatment . . . . . . . . . . . . . . . . . . .611.1

Vacuum drainage . . . . . . . . . . . . . . . . . . . . . . . .C 501.0

Ventilation . . . . . . . . . . . . . . . . . . . . . . .506.1.3, 506.7.3

Wet vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.2.5

– T –

T RATING . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0, 1404.3,

1405.3, 1406.4

TAILPIECES

Connection . . . . . . . . . . . . . .414.3, 419.2, 910.5, 910.6

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0

Maximum length of . . . . . . . . . . . . . . . . . . . .910.5, 1001.2

Sizes . . . . . . . . . . . . . . . . . .407.5, 408.4, 409.2, 420.4,

B 101.3, B 101.5, B 101.6.1

TANKS

Dosing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 601.8

Expansion . . . . . . . . . . . . . . . . . . . .608.2, 608.3, 812.1

Flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0, 402.4,

413.1, 601.2, A 104.1

Flushometer . . . . . . . . . . . . . . . . . . . . . .610.11, A 106.3

Hot water storage . . . . . . . . . . . . . .608.3, 608.6, 608.7,

L 502.2, L 503.3.2

Materials . . . . . . . . . . . . . . . . . . . . . . . . . . .710.8, 810.2

Oil . . . . . . . . . . . . . .1017.1, E 403.12, E 403.13, E 404.6

Rainwater storage . . . . . . . . . . . . . . . .1602.7.3, 1603.0,

K 102.2, K 103.3, K 105.0

Reclaimed water storage . . . . . . . . . . . . . . . . . . .1505.4

Septic . . . . . . . . . . . . . . . . . . . . . . . . . . . .714.3, 716.1,

722.2 – 722.4,

Appendix H

Sump or receiving . . . . . . . . . . . .710.2, 710.7 – 710.10,

810.2, 1101.7

Surge . . . . . . . . . . . . . . . .221.0, 1503.2.1, Table 1503.4

1503.9.1, 1504.10

Urinal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.5.2

Water closet . . . . . . . . . . . . . . . . . .404.2, 405.1, 601.2,

603.5.2, 603.5.3, L 402.2

2019 CALIFORNIA PLUMBING CODE 501

Water supply . . . . . . . . . . . . . . . . . . . . . . .608.1, 608.6,

608.7, E 502.7, E 506.1

TELEPHONE AND DATA

EQUIPMENT ROOMS . . . . . . . . . . . . . . . . . . . . . . .310.13

TEMPERATURE AND

PRESSURE-RELIEF VALVES . . . . . . . . . . . .504.6, 505.2

TEMPERATURE-LIMITING DEVICES . . . . . . .407.3, 408.3,

409.4, 410.3, 504.5

TEMPORARY USE OF GAS . . . . . . . . . . . . . . . . . . .1207.0

TERMINATION OF VENTS . . . . . . . . . . . . . .509.6.1, 509.8

509.8.2, 906.0, H 501.11

TESTING AGENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0

TESTS

Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.3, 105.3.1,

609.4, 712.3,

723.1, 1107.2.2,

1107.2.3, 1213.1.6

Alternate materials and methods . . . . . . . . . . . . . .301.3

Building sewer . . . . . . . . . . . . . . . . . . .102.4.1, 105.2.1,

105.2.1.2, 723.0

Cross-connection . . . . . . . . . . . . . . . . . . . .1505.13.2.2

Exceptions . . . . . . . . . . . . . . . . . . . . . . .105.3, 1107.2.3

Final . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .712.1

Fuel gas piping . . . . . . . . . . . . . . . . . . . . . . . . . .1213.0

Gauges . . . . . . . . . . . . . . . . . . . . . . . . .318.0, 1203.3.2

Percolation . . . . . . . . . . . . . . . . . . . . . . .1504.3, H 401.0

Reclaimed (recycled) water . . . . . . . . . . .Table 1505.15

Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.3

Responsibility for . . . . . . . . . . . . . . . . . . . . . . . .105.2.5

Shower receptors . . . . . . . . . . . . . . . . . . . . . . . .408.7.5

Storm drainage . . . . . . . . . . . . . . . . . . . . . . . . . .1106.0

Testing agency . . . . . . . . . . . . . .222.0, 301.3.1.1, 505.4,

610.2, 1406.4

Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.4, 712.2,

1107.2.1, 1107.2.3

Water supply systems . . . . . . . . . . . . . .105.2.1.1, 609.4

THREADED JOINTS . . . . . . . . . . . . . . . . . . .605.1.5, 605.2.3,

605.5.2, 605.11.3,

605.12.3, 605.16.1,

705.1.3, 705.3.4,

705.4.2, 705.6.3,

705.10.2, 1208.6.10,

1208.6.11.1, 1309.13

THREE SINGLE

COMPARTMENT SINKS . . . . . . . . . . . . . . . . . . . . .1001.2

TOILET FACILITY, DEFINITION . . . . . . . . . . . . . . . . . . .222.0

TOILET ROOM, DEFINITION . . . . . . . . . . . . . . . . . . . .222.0

TOILETS . . . . . . . . . . . . . . . . . . . . . . . . .(see Water closets)

TOILETS, FAMILY

OR ASSISTED - USE FACILITY . . . . . . . . . . . . . .422.1.1

TRACER WIRE . . . . . . . . . . . . . . . . . . .604.10.1, 1210.1.7.2

TRANSITION GAS RISER . . . . . . . . . . . . . .222.0, 1210.3.4

TRANSITION JOINTS . . . . . . . . . . . . . . . . . . . . . . . .705.9.4

TRAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 10

Arms . . . . . . . . . . . . . . . . . .222.0, Table 702.1, 707.14,

1002.2, Table 1002.2, 1002.3

Bar and fountain sinks . . . . . . . . . . . . . . . . .801.4, 902.2

Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1008.0

Bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.1

Condensers and sumps . . . . . . . . . . . . . . . . . . . . .810.1

Crown weir . . . . . . . . . . . . . . . . . . .222.0, 409.6, 905.5,

1001.2, 1002.2, 1002.4

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0

Drum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.1

Floor drains . . . . . . . . . . . . . . . . . . . . . . .704.3, 1003.1,

1006.0, 1007.1

Food storage areas . . . . . . . . . . . . . . . . .418.4, 801.3.2

For three-compartment

sinks or three lavatories . . . . . . . . . . . . . . . . . .1001.2

From fixture, distance of . . . . . . . . . . . . . . . . . . . .1001.2

From vent, distance of . . . . . . . . . .1002.2, Table 1002.2

Grease interceptors . . . . . . . . . . . . . . . . . . . . . .1014.1.1

Indirect wastes . . . . . . . . . . . . . . . . . . . . . . . . . . .803.3

Integral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001.2

Island sinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.1

Materials . . . . . . . . . . . . . . . . . . . . .807.2, 906.6, 1003.1

Minimum size . . . . . . . . . . .702.1, Table 702.1, 1003.3,

Nonwater urinals . . . . . . . . . . . . . . . . . . . . . . . . .412.1.1

Prohibited types . . . . . . . . . . . . . . . . . . . . . . . . . .1004.0

Required . . . . . . . . . . . . . . . . . . . . . . . . .1001.0, 1101.15

Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0, 412.1.1,

912.2, 1005.0,

1007.1, C 601.1, E 501.6

Seal primer . . . . . . . . . . . . . . . . . . . . . . . .222.0, 1007.1

Separate for each fixture . . . . . . . . . . . . . . . . . . .1001.2

Slip joints . . . . . . . . . . . . . . . . . . . . . . . .705.9.1, 1003.2

Standpipe receptors . . . . . . . . . . . . . . . . . . . . . . .804.1

Storm drains and leaders . . . . . . . . . . . . . . . . . .1101.15

Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1

Unit loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . .702.0,

Table 702.1, Table 703.2

Vacuum drainage system . . . . . . . . . . . . . . . . . .C 501.7

Vents for . . . . . . . . . . . . . . . . .Table 703.2, 810.1, 901.0,

905.2, 905.5, 908.2.1,

909.1, 1002.0, Table 1002.2

TREATED GRAY WATER, DEFINITION . . . . . . . . . . . . .222.0

TRENCHING, EXCAVATION,

AND BACKFILLING . . . . . . . . . . . . . . . . . .314.0, 1203.2,

1210.1.1 – 1210.1.2.1, 1310.6

TROUGH URINALS,

PROHIBITED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405.2

TUBING, COPPER . . . . . .Table 604.1, 604.3, 604.4, 605.1,

609.1, 609.3, 701.2, Table 701.2,

903.2, 1208.6.4.2, A 105.2, E 403.5,

TUNNELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.2

502 2019 CALIFORNIA PLUMBING CODE

TYPE B

GAS VENTS . . . . . . . . . . . . . . .224.0, 509.1, Table 509.4,

509.5.5, 509.6.1.1, 509.6.2.1,

509.6.2.2, 509.6.3.2, Table 509.7.3.4(1),

509.7.3.5, 509.10.1.1, 509.10.1.2,

509.10.7.2, 509.10.12, 510.1.6,

510.1.10, 510.2.2, 510.2.15, 510.2.19,

510.2.20, 510.2.22, Appendix G,

TYPE BW GAS VENTS . . . . . . .224.0, Table 509.4, 509.6.1.2,

TYPE L GAS VENTS . . . . . . .224.0, Table 509.4, 509.6.1.1,

509.6.2.2, Table 509.7.3.4(1),

509.10.1.1, 509.10.1.2, 509.10.12

– U –

UNDERGROUND

Backflow prevention devices . . . . . . . . . . . . . . .603.4.9

Building storm drains . . . . . . . . . . . . . . . . . . . . .1101.4.4

Drainage piping . . . . . . . . . . . . . . . . . . . . . . . . . . .701.2,

Table 701.2, 720.0,

Fuel gas piping . . . . . . . . . . . . . . . .1203.2, 1208.6.3.3,

1208.6.4.3, 1210.1,

E 401.2, E 402.2, E 403.7,

E 403.8, E 403.8.4

Gray water piping . . . . . . . . . . . . . . . . . . . . . . .1503.9.2

Medical gas and

medical vacuum piping . . . . . . . . . . .1310.3.2, 1310.6

Stop-and-waste valves . . . . . . . . . . . . . . . . . . .603.5.17

Storm water piping . . . . . . . . . . . . . . . . .1101.4, 1101.4.2

Tanks . . . . . . . . . . . . . . . . .1503.9.1, 1603.5, 1603.11.2,

E 403.11, K 105.0

Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1

Vent material . . . . . . . . . . . . . . . . . . . . . . . .903.1, 903.2

Water piping . . . . . . . . . . . . . . . .604.3, 609.8, 1506.9.4

UNIONS

Dielectric . . . . . . . . . . . . . . .605.15, 605.16.1, 605.16.3

Fuel gas piping . . . . . . . . . . . . . . . . . . .1212.6, E 404.2

Location . . . . . . . . . . . . . . . . . . . . . .315.1, 609.5, 710.6

Medical gas and

medical vacuum piping . . . . . . . . . . . . . . . . .1309.18

Sump pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.6.2

Where allowed . . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1

UNIT LOADING OF TRAPS . . . . . . . .702.1, Table 702.2(1)

UNITS, FIXTURE . . . . . . . . . . . . . . . . . . .(see Fixture, units)

UNLAWFUL CONNECTIONS . . . . . . .404.2, 602.0, 1205.2

UNSANITARY, DEFINITION . . . . . . . . . . . . . . . . . . . .223.0

UPC, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0

URINALS . . . . . . . . . . . . . . . . . .402.5, 402.6, 405.2, 412.1,

412.1.1, 412.1.2, 412.1.3, 412.1.3.1

413.0, 418.3, 601.2, 603.5.1,

603.5.2, 707.4, 710.3, 910.7,

1003.1, 1014.1, 1014.3.2.1,

1501.9, 1505.1, 1506.1,

1506.9.2, 1506.9.5, 1602.1,

1603.10, 1603.15, 1604.2,

E 501.2, E 501.5, K 105.11,

L 402.3

USE OF ALTERNATE MATERIAL . . . . . . . . . . . . . . . .301.3

USER OUTLET, DEFINITION . . . . . . . . . . . . . . . . . . .223.0

– V –

VACUUM BREAKERS . . . . . . . . . . . . .224.0, 410.2, 412.2,

601.3.4, Table 603.2, 603.3.2,

603.3.5, 603.3.6, 603.4.4,

603.5.1, 603.5.5, 603.5.6,

603.5.7, 603.5.9, 603.5.13,

603.5.15, 603.5.16, 1303.5,

C 501.3, E 505.4, E 506.1

VACUUM DRAINAGE SYSTEMS . . . . . . . . . . . . . . .C 501.0

VACUUM RELIEF VALVES . . . . . . . . . . . . . . . . .224.0, 504.6,

608.7, 1602.9.2

VACUUM SYSTEM –

LEVEL 1, DEFINITION . . . . . . . . . . . . . . . . . . . . . . .224.0

VALIDITY OF CODE . . . . . . . . . . . . . . . . . . . . . . . . . . .101.5

VALVES

Backwater . . . . . . . . . . . . . . . . . . . .204.0, 710.1, 710.3,

710.6, 1006.1, 1503.2.3,

1503.9.1, 1603.6, K 105.4

Ball . . . . . . . . . . . . . . . . . . . .606.1, 606.4, 710.4, 710.6

Bathtub filler . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409.5

Check . . . . . . . . . . . . . . . . . . . .603.5.10, 608.3, 710.4,

710.12.1, 710.13.2, 1004.2,

1208.8.1, 1313.2.2, 1313.6.2,

1314.5.4, F 701.3

Combination stop-and-waste . . . . . . . . . . . . . .603.5.17

Combination temperature

and pressure-relief . . . . . . . . . . . . . . . . .505.2, 608.3

Combination thermostatic/

pressure balancing . . . . . . . . . . . . . . . . .205.0, 408.3

Control . . . . . . . . . . . . . . . . .408.9, 601.2, 606.5, 606.6,

1303.1, 1319.2, C 501.3

Diaphragm-type . . . . . . . . . . .507.22, 1208.8.4, 1208.12

Excess flow . . . . . . . . . . . . . . . . . . . . . . . .207.0, 1209.0

Flow balancing . . . . . . . . . . . . . . . . . . . . . . . . . .L 501.7

Flush, definition . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0

Flushometer . . . . . . . . . . . . . . . . .208.0, 411.2.2, 413.1,

413.2, 601.2, 603.5.1, 610.10,

Table 610.10, A 104.1, L 402.2.2

Fullway . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.2, 710.6

Gate . . . . . . . . . . . . . .606.1, 606.4, 710.3, 710.4, 710.6

Gray water diverter . . . . . . . . . . . . . . . . . . . . . .1503.2.2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.7

Isolation . . . . . . . . . . . . . . . . . .224.0, F 501.7, F 601.5.1,

F 701.3, F 801.6

Mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417.5

Pre-rinse spray . . . . . . . . . . . . . . . . . . . .420.3, L 201.0,

Table L 402.1, L 402.7

2019 CALIFORNIA PLUMBING CODE 503

Pressure-balancing . . . . . . . . . . . . . . . . . . .218.0, 408.3

Pressure-reducing . . . . . . . . . . . . .612.5.3.2.2, 612.7.2,

1504.5.2(6),1603.10, A 107.2,

E 403.13, F 701.3, K 105.11

Pressure-relief . . . . . .504.4, 504.6, 505.2, 507.9, 607.5,

608.2 – 608.6, 1208.10.4, 1312.3,

1313.2.2, 1313.4, 1313.7, 1315.2,

1316.3, 1318.4, 1318.5, 1318.6,

1318.11, 1319.2, E 302.5,

E 302.6, F 501.8, F 701.3

Quick-acting . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.10

Riser . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0, 1311.4,

1311.10.4

Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1505.8.1

Service . . . . . . . . . .224.0, 1311.5, 1311.10.5, E 402.4.2

Shutoff 502.7.1, 502.7.2, 504.6, 606.2, 606.3, 606.6, 608.4, 609.8,

612.4.3, 612.6, 710.3.2, 710.12.1,

1202.1, 1203.3.2, 1208.12,

1208.13, 1210.2.2.1, 1210.7.2,

1210.9 – 1210.9.4, 1210.11,

1210.12.5, 1212.3.1, 1212.3.2,

1212.5.3, 1212.6, 1212.7, 1213.2.5,

1213.6.1.4, 1311.2, 1311.8, 1311.10,

1313.2.2, 1313.4, 1314.2, 1503.9.1,

1603.6, E 302.3, E 402.3, E 402.4.2,

E 403.0, E 403.9, E 403.13, E 404.5,

E 505.4, E 506.1, F 601.1, K 105.4,

L 402.3.1, L 404.6, L 410.3, L 413.4

Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1505.8.2

Source . . . . . . . . . . . . . . . . . . . . .224.0, 1311.2, 1311.3,

1311.10.2, 1318.9.2

Temperature relief . . . . . . . . . . . . . .504.5, 504.6, 505.2

Thermostatic . . . . . . . . . . . . . . . . . . . . . . .222.0, 408.3

Vacuum interface . . . . . . . . . . . . . . . . . . . . . . .C 501.2.4

Vacuum relief . . . . . . . . . . . . . . . . . . . . . . .224.0, 504.6,

607.5, 608.7, 1505.10,

1506.9.3, 1602.9.2

Zone . . . . . . . . . . . . . . . . . . . .224.0, 1311.1.2, 1311.6.5,

VENT, PLUMBING . . . . . . . . . . . . . . . . . . . . . . . .Chapter 9

Below trap weir . . . . . . . . . . . . . . . . . . . . .905.5, 1002.4

Branch, definition . . . . . . . . . . . . . . . . . . . . . . . . .204.0

Buildings over 10 stories . . . . . . . . . . . . . . . . . . . .907.1

Changes in direction of . . . . . . . . . . . . . . . . . . . . .903.3

Chemical . . . . . . . . . . . . . . . . . . . . . .811.2, 811.5, 811.6

Combination waste and

vent system design . . . . . . . . . . . . . . . . .205.0, 910.0,

Appendix B

Connections . . . . . . . . . . . . .310.2, 805.0, Table 810.1,

905.1, 905.2, 908.1.2,

908.2.1, 911.2, 1503.2.2

Continuous, definition . . . . . . . . . . . . . . . . . . . . . .205.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0

Distance of trap from . . . . . . . . . . .1002.2, Table 1002.2

Double fitting for . . . . . . . . . . . . . . . . . . . . .704.2, 905.6

Engineered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .912.0

Expansion joints . . . . . . . . . . .705.9.2, 1101.5, 1213.2.2

Fittings . . . . . . . . . . . . . . . . . . .701.2, Table 701.2, 903.1

Fixtures, back-to-back . . . . . . . . . . . . . . . .704.2, 905.6

Flagpoling, prohibited . . . . . . . . . . . . . . . . . . . . . .906.3

Flashing for . . . . . . . . . . . . . . . . . . .312.8, 701.5, 906.1,

906.5, 906.6

Frost or snow closure . . . . . . . . . . . . . . . . . . . . . .906.7

Grade of . . . . . . . . . . . . . . . . . . . . . .905.1, 905.3, 911.3

Height above fixture . . . . . . . . . . . . . . . . . . . . . . .905.3

Height above grade . . . . . . . . . . . . . . . . . . . . . . . .906.4

Horizontal . . . . . . . . . . . . . . . .Table 703.2, 904.2, 905.3

Indirect waste . . . . . . . . . . . . . . . . .803.3, 805.1, 902.1

Individual, definition . . . . . . . . . . . . . . . . . . . . . . . .211.0

Interceptors . . . . . . . . . . . . . . . .902.1, 1009.4, 1014.1.1,

1014.2.2, 1016.4, 1017.1

Island sinks and fixtures . . . . . . . . . . . . . . . . . . . .909.0

Length of . . . . . . . . . . .Table 702.1, Table 703.2, 904.0

Material for . . . . . . . . . . . . . . . . . . . . .701.0, Table 701.2,

811.2, 903.0, 1503.9.2

Method of installation . . . . . .310.5, 903.3, 906.2, 906.4

Not required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.0

Not to be used as

soil or waste pipe . . . . . . . . . . . . . . . . . . . . . . . .310.4

Opening location . . . . . . . . . . . . . . . . . . .905.5, 1002.4

Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .907.1

Piping, support of . . . . . . . . . . . . . . . . . . . . .Table 313.3

Prohibited . . . . . . . . . . . . . . . . . . .310.4, 903.1, 903.2.2

Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0, 805.0,

907.0, 911.4, 1009.4

Required . . . . . . . . . . . . . . . . . . . . . . . . . . .901.2, 904.1

Required separately

on every trap . . . . . . . . . . . . . . . .901.2, 1002.1, 1002.2

Sizing . . . . . . . . . . . . . .Table 702.1, 703.0, Table 703.2,

904.0, 908.1.1, 908.1.2, 908.2.2,

910.4, C 401.0, Table C 401.1, C 601.2

Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0

Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0, 906.1,

907.0, C 401.2, C 601.2

Sump . . . . . . . . . . . . . . . . . . . .710.7, 710.10, 710.13.3,

810.1, Table 810.1

System, definition . . . . . . . . . . . . . . . . . . . . . . . . .224.0

Termination . . . . . . . . . . . . . . . . . . . . . . . . .905.4, 906.0

Testing . . . . . . . . . . . . . . . . . . . . . . . . . .712.0, 1504.10

Trap seal protection . . . . . . . . . . . . . . . . . .901.3, 1002.0

Undiminished in

size through roof . . . . . . . . . . . . . . . . . . .905.4, 907.1

Unit loading . . . . . . . . . . . . . . . . . . . . . . . . .Table 703.2

Wet, Horizontal . . . . . . . . . . . . . . . . . . . . . . . . . . .908.2

Wet, Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.1

Yoke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227.0, 907.0

504 2019 CALIFORNIA PLUMBING CODE

VENTILATING HOODS . . . . . . . . . . . . . . . .509.2.4, 509.3.4

VERTICAL-TO-HORIZONTAL

DRAINAGE FITTINGS . . . . . . . . . . . . . . . . . . . . . . .706.4

VERTICAL WET VENTING . . . . . . . . . . . . .(see Wet vents)

VIOLATION, NOTICES OF . . . . . . . . . . . . . . . . . . . . . .106.2

VITRIFIED CLAY PIPE . . . . . . . . .701.2, Table 701.2, 705.8,

811.2, Table 1101.4.6

– W –

WALL, EXTENSION THROUGH . . . .312.1, 509.6.1.3, 509.8

WALL-HUNG FIXTURES,

INSTALLATION OF . . . . . . . . . . . . . . . . . . . . .402.4, 402.6

WASH FOUNTAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . 417.1.1

WASH RACKS, AUTO . . . . . . . . . . . . . . . . . . . . . . . . . 1011.0

WASTES

Anesthetic gas disposal . . . . . . . . . . . . . . . . . . . .1301.2

Chemical . . . . . . . . . . . . . . . . . . . .205.0, 811.0, 903.2.2

Clear water . . . . . . . . . . . . . . . . . . . . . . . . .205.0, 812.0

Condensate . . . . . . . . . . . . . . . . . . . . . . . . .807.2, 814.0

Continuous . . . . . . . . . . . . . . . . . . . . . . . . .205.0, 407.5,

408.4, 409.2, 419.2

Cooling water . . . . . . . . . . . . . . . . . . . . . . . . . . . .808.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

Detrimental or harmful . . . . . . . . . .305.1, 306.1, 714.1,

811.1, 1009.1, H 901.1

Flammable . . . . . . . . . . . . . . . . . . . . . . .1009.1, H 901.1

Indirect . . . . . . . . . . . . . . . . . . . . . .Chapter 8, 1303.4.1

Industrial . . . . . . . . . . . . . . . . . . . . .211.0, 306.0, 801.1,

811.1, 903.2.2

Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0, 303.0,

304.0, 710.2,

811.1, 1006.1,

1009.1, H 101.3,

H 701.1, H 901.1, L 302.0

Materials, pipe . . . . . . . . . . . . . . . . . . . . . . .701.1, 811.2

Pipe, definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

Pretreatment required . . . . . . . . . . . . . . . . .811.1, 1014.1

Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1013.1

Special, definition . . . . . . . . . . . . . . . . . . . . . . . . . .221.0

Swimming pools . . . . . . . . . . . . . . . . . . . . . . . . . .813.1

WATER

Backflow prevention . . . . . . . . . . . . .603.3, Table 603.2

Cross contamination . . . . . . . . . . . . . . . . .601.2, 602.2,

603.1 – 603.3.9

Distribution piping material . . . . . . . .604.1, Table 604.1

Distribution system design . . . . . . . . . . . . . . . . . . .601.1

Excessive pressure . . . . . . . . . . . . . . . . . . . . . . . .608.2

Hammer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.10

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.3

Lead content . . . . . . . . . . . . . . . . . . . . . .604.2, 604.2.1

Nonpotable . . . . . . . . . . . . . . . . . . . . .603.5.11, 1506.6,

1506.9.5, L 408.1

Rainwater, material . . . . . . . . . . . . . . . . . . . . . . . .1101.4

Reclaimed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.4

Storm water . . . . . . . . . . . . . . . . .(see Storm drainage)

Submeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.2.1

Supply piping material . . . . . . . . . . .604.1, Table 604.1

Treatment units . . . . . . . . . . . . . . . . . . . . . . . . . . . .611.0

WATER CLOSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . .411.0

Approved standards . . . . . . . . . . . . . . . . . . . . . . . .411.1

Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.5

Compartments . . . . . . . . . . . . . . . .E 501.3.2, E 501.3.3

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

Effective flush volume . . . . . . . . . . . . . . . . . . . . . .411.2

Flanged fixture Connection . . . . . . . . . . . . . . . . . .402.6

Floor-mounted, back-outlet . . . . . . . . . . . . . . . . .402.6.3

Flushometer Valve Activated . . . . . . . . . . . . . .411.2.2.1

Manufactured/Mobile home . . . . . . . . .E 501.2, E 501.3,

E 501.3.1, E 501.6,

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . .411.2.3

Prohibited . . . . . . . . . . . . . . . . . . . . . . . . . .405.1, 910.7

Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .411.3

Water consumption . . . . . . . . . . . . . . . . .411.2, L 402.2

WATER-CONSERVING

FIXTURES AND FITTINGS . . . . . . . . . . . . .401.3, L 402.0

WATER HAMMER ARRESTORS . . . . . . . . . .225.0, 609.10

WATER HEATERS . . . . . . . . . . . . . . . . . . . . . . . .Chapter 5

Access . . . . . . . . . . . . . . . . . . . . . . . .504.3.1, 507.13.2,

507.26, 508.4

Approval requirements . . . . . . . . . . . . . . . . . . . . . .501.1

Approved standards . . . . .Table 501.1(1), 505.3, 505.4

Clearances. . . . . . . . . . . . . . . . . . . . . . 504.3 – 504.3.2,

508.1, 508.2.1

Combustion air required . . . . . . . . . . . . . . . . . . . .506.0

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .604.13

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

Garages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.13

Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.0

Location . . . . . . . . . . . . . . . . . . .504.1, 507.12 – 507.15

Oil-burning and other . . . . . . . . . . . . . . . . . . . . . .505.0

Permits required . . . . . . . . . . . . . . . . . . . . . . . . . .502.0

Pressure-relief valves . . . . . . . . . . .504.4, 504.6, 505.2,

608.2 – 608.5

Protection . . . . . . . . . . . . . . . . . . .504.3 – 504.6, 505.2,

507.2, 507.8, 507.10,

507.14.1, 507.25

Relief valve discharge . . . . . . . . . . . . . . . . . . . . . .608.5

Seismic provisions . . . . . . . . . . . . . . . . . . . . . . . . .507.2

Temperature and

pressure-relief valves . . . . . . . . . . . . . . .504.6, 505.2

Temperature-limiting devices . . . . . . . . . . . . . . . . .504.5

Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.0, 510.0

WATER SOFTENERS . . . . . . . . . . . . . . . . 611.4, Table 611.4

WATER TESTS

Building sewers . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0

2019 CALIFORNIA PLUMBING CODE 505

Drainage and vent systems . . . . . . . . . . . . .105.3, 712.2

Storm drainage . . . . . . . . . . . . . . . . . .1107.2.1, 1107.2.3

Water supply systems . . . . . . . .105.2.1.1, 105.3, 609.4

WATERPROOFING

AND WATERTIGHT

Building sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.1

Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.3

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105.3

Drain pans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.5

Fixtures . . . . . . . . . . . . . . . . .402.2, 408.5, 408.7, 418.2

Flashings . . . . . . . . . . . . . . . . . . . .312.8, 906.5, 1102.3

Interceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1016.3

Joints . . . . . . . . . . . . .105.3, 1504.7.3, H 601.4, H 601.6,

H 601.7, H 601.10, H 801.4

Openings . . . . . . . . . . . . . . . . . . .312.8, 312.10.2, 317.1

Sump or receiving tanks . . . . . . . . . . . . . . .710.2, 710.8

Tanks . . . . . . . . . . . . . . . . . . . . . . . . . .714.5, 1503.9.1,

1504.10, 1603.2, H 501.3,

H 1001.2, K 105.2

Vacuum drainage systems . . . . . . . . . . . . . . . . .C 501.8

WATER/WASTEWATER

UTILITY, DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

WEEP HOLES, SUBDRAIN

OF SHOWER STALLS . . . . . . . . . . . . . . . . . . . . . . . . .408.7

WEIGHT OF FLASHING, LEAD . . . . . .701.5, 906.6, 1102.3.1

WEIGHTS AND QUALITY

OF MATERIALS . . . . . . . . . . . . . . . . .301.2, 401.2, 604.1,

701.2, 906.6, 1102.3.1

WELDED JOINTS . . . . . . . . . . . . . . . . . . . .212.0, 605.13.2,

705.7.2, 1208.6.11.1,

1309.16, F 1101.2

WELDER, PIPE, DEFINITION . . . . . . . . . . . . . . . . . . .225.0

WELL, DISTANCE FROM

SEWAGE DISPOSAL . . . . . . . . . . . . . .721.1, Table 721.1,

H 101.8, Table H 101.8

WET VENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.0

Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0

Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . .908.2.3, 908.2.4

Horizontal . . . . . . . . . . . . . . . . . . .908.2, B 101.2, C 601.6

Vent connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.2

Vertical 908.1

WHIRLPOOL BATHTUBS . . . . . . . . . . . . . . . .225.0, 409.0

WINDOW, TERMINATION

OF VENTS FROM . . . . . . . . . . . . . . . . . . . . . . . . . . .906.2

WOODEN SINKS AND TILE

WASH TRAYS OR SINKS . . . . . . . . . . . . . . . . . . . . .405.3

WORK, CONCEALED . . . . . . . . . .105.0 – 105.2.1.2, 309.2,

402.10, 503.0 – 503.2,

509.7.3.2, 1004.1,

1203.2, 1203.3,

1210.3, 1212.3.1,

1212.5.3, 1213.2.1,

1303.2, 1310.7, 1406.1

WORK, EXISTING . . . . . . . . . . . . . . . . . .102.2, 102.4, 207.0

WORKMANSHIP . . . . . . . . . . . . . . . .309.0, 609.1, 1208.6.8

WRAPPING OF PIPE . . . . . . . . . . . . . . . . . . . . . . . . .609.3,

1210.2, E 403.6

WROUGHT IRON

(GALVANIZED) . . . . . . . . . . . .402.6.1, Table 604.1, 604.6,

604.7, 701.2, 707.1, 1101.4,

1208.6.3.1, 1208.6.11.4,

1314.2, E 403.5

WYE CONNECTIONS . . . . . . . . . . . . . . . . . . . 414.3, 419.2,

706.2 – 706.4,

707.5, 707.6,

710.4, 719.4, 907.2,

909.1, 1101.16.2

– X –

X-RAY DARKROOMS . . . . . . . . . . . . . . . . . . . . . . . . . .811.8

– Y –

YOKE VENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .227.0, 907.0

– Z –

ZINC ALLOY COMPONENTS . . . . . . . . .406.4, 1208.6.11.4

506 2019 CALIFORNIA PLUMBING CODE

HISTORY NOTE APPENDIX

CALIFORNIA PLUMBING CODE (TITLE 24, PART 5, CALIFORNIA CODE OF REGULATIONS)

For prior history, see the History Note Appendix to the Cali- fornia Plumbing Code, 2016 Triennial Edition, effective January 1, 2017.

1. (BSC 04/18, HCD 02/18, DSA-SS 04/18, OSHPD 05/18, SFM 05/18, DWR 01/18) Adoption by reference of the 2018 Uniform Plumbing Code with necessary amend- ments to become the 2019 California Plumbing Code, and repeal of the 2015 edition of the Uniform Plumbing Code; effective on January 1, 2020.

2019 CALIFORNIA PLUMBING CODE 507

508 2019 CALIFORNIA PLUMBING CODE

LICENSE AGREEMENT INTERNATIONAL ASSOCIATION OF PLUMBING AND MECHANICAL OFFICIALS (IAPMO)

CALIFORNIA PLUMBING CODE E-BOOK – 2019 EDITION

The International Association of Plumbing and Mechanical Officials (“IAPMO”) agrees to grant, and the user of the eBook agrees to accept, a nonexclusive license to use the eBook under the terms and conditions of this eBook License Agreement (“Agreement”). Your use of the eBook constitutes your agreement to the terms and conditions set forth in this Agreement. This Agreement, or any part thereof, cannot be changed, waived, or discharged other than by a statement in writing signed by you and IAPMO. Please read the entire Agreement carefully.

eBook Usage The IAPMO eBook may be used by one user on one computer. The user of the eBook shall be subject to all of the terms of this Agreement, whether or not the user was the purchaser.

Copyright, Use and Resale Prohibitions IAPMO retains all rights not expressly granted to you in this Agreement. The software, content, and related documentation in the eBook are protected by copyright laws and international copyright treaties, as well as other intellectual property laws and treaties. Nothing in this Agreement constitutes a waiver of IAPMO’s rights. IAPMO will not be responsible for performance problems due to circumstances beyond its reasonable control. Other than as stated in this Agreement, you may not copy, print, modify, remove, delete, augment, add to, publish, transmit, sell, resell, license, create derivative works from, or in any way exploit any of the eBook’s content, in whole or in part, in print or electronic form, and you may not aid or permit others to do so. The unauthorized use or distribution of copyrighted or other proprietary content is illegal and could subject the purchaser to substantial damages. Purchaser will be liable for any damage resulting from any violation of this Agreement.

No Transfer This license is not transferable by the eBook purchaser unless such transfer is approved in advance by IAPMO, in which case the transferee will be subject to the terms and conditions of this Agreement.

Disclaimer The eBook, or any support given by IAPMO’s technical support staff, are in no way substitutes for assistance from legal, tax, accounting, or other qualified professionals. If legal advice or other expert assistance is required, the services of a competent professional person should be sought.

Limitation of Liability The eBook is provided “as is” and IAPMO does not make any warranty or representation, either express or implied, to the eBook, including its quality, accuracy, performance, merchantability, or fitness for a particular purpose. You assume the entire risk as to the results and performance of the eBook. IAPMO does not warrant, guarantee, or make any representations regarding the use of, or the results obtained with, the eBook in terms of accuracy, correctness or reliability. In no event will IAPMO be liable for indirect, special, incidental, or consequential damages arising out of delays, errors, omissions, inaccuracies, or the use or inability to use the eBook, or for interruption of the eBook, from whatever cause. This will apply even if IAPMO has been advised that the possibility of such damage exists. Specifically, IAPMO is not responsible for any costs, including those incurred as a result of lost profits or revenue, loss of data, the cost of recovering such programs or data, the cost of any substitute program, claims by third parties, or similar costs.

Hold Harmless / Indemnification. You agree to defend, indemnify and hold IAPMO and any third party provider harmless from and against all third party claims and damages (including reasonable attorneys’ fees) regarding your use of the eBook, unless the claims or damages are due to IAPMO’s or any third party provider’s gross negligence or willful misconduct or arise out of an allegation for which IAPMO is obligated to indemnify you.

Termination If you materially breach this License Agreement, we may terminate your right to use the Material immediately upon notice to you.

You agree that, upon termination of the License Agreement, you will either return to us or destroy all copies of the Material in your possession.

Additional Terms This written License Agreement is the exclusive agreement between you and us concerning the eBook and supersedes any and all prior oral or written agreements, negotiations, or other dealings between us concerning the eBook.

This License Agreement may be modified only by a writing signed by the user and IAPMO.

In the event of litigation between the user and IAPMO concerning the eBook, the prevailing party in the litigation and the prevailing party in any ancillary disputes (e.g., discovery disputes) will be entitled to recover attorneys’ fees and expenses from the other party.

This License Agreement is governed by the laws of the State of California applicable to contracts executed and performed entirely in, and by residents of, that state.

This License Agreement is effective immediately upon your installation or use of the eBook.

If you have any questions regarding this License Agreement, please write to the International Association of Plumbing and Mechanical Officials (IAPMO), 4755 East Philadelphia Street, Ontario, California 91761-2816.

This agreement is governed by the laws of the State of California applicable to contracts executed and performed entirely in, and by residents of, that state.