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Earlier editions: 20222019

Chapter 6 — WATER SUPPLY AND DISTRIBUTION

610.10 Sizing for Flushometer Valves.

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

Where using Table 610.4 to size water supply systems serving flushometer valves, the number of flushometer fixture units assigned to every section of pipe, whether branch or main, shall be determined by the number and category of flushometer valves served by that section of pipe, in accordance with Table 610.10. Piping supplying a flushometer valve shall be not less in size than the valve inlet.

Where using Table 610.10 to size water piping, care shall be exercised to assign flushometer fixture units based on the number and category of fixtures served.

TABLE 610.10 FLUSHOMETER FIXTURE UNITS FOR WATER SIZING USING TABLE 610.3
FIXTURE CATEGORY: WATER CLOSET WITH FLUSHOMETER VALVES




NUMBER OF
FLUSHOMETER
VALVES		 INDIVIDUAL
FIXTURE UNITS
ASSIGNED IN
DECREASING
VALUE		 FIXTURE UNITS ASSIGNED
FOR WATER CLOSETS AND
SIMILAR 10-UNIT FIXTURES IN
ACCUMULATIVE VALUES

1		 40 40

2		 30 70

3		 20 90
4 15 105



5 or more		 10 each 115 plus 10 for each additional
fixture in excess of 5

FIXTURE CATEGORY: URINALS WITH FLUSHOMETER VALVES




NUMBER OF
FLUSHOMETER
VALVES		 INDIVIDUAL
FIXTURE UNITS
ASSIGNED IN
DECREASING
VALUE		 FIXTURE UNITS ASSIGNED
FOR URINALS AND SIMILAR
5-UNIT FIXTURES IN
ACCUMULATIVE VALUES


1		 20 20


2		 15 35

3		 10 45

4		 8 53

5 or more		 5 each 58 plus 5 for each additional
fixture in excess of 5

WATER SUPPLY AND DISTRIBUTION

TABLE 610.3 WATER SUPPLY FIXTURE UNITS (WSFU) AND MINIMUM FIXTURE BRANCH PIPE SIZES [3]

APPLIANCES, APPURTENANCES OR FIXTURES2 MINIMUM FIXTURE
BRANCH PIPE SIZE1,4
(inches)		 PRIVATE PUBLIC ASSEMBLY6
Bathtub or Combination Bath/Shower (fill) 1⁄2 4.0 4.0 ––
3⁄4 inch Bathtub Fill Valve 3⁄4 10.0 10.0 ––
Bidet 1⁄2 1.0 –– ––
Clothes Washer 1⁄2 4.0 4.0 ––
Dental Unit, cuspidor 1⁄2 –– 1.0 ––
Dishwasher, domestic 1⁄2 1.5 1.5 ––
Drinking Fountain or Water Cooler 1⁄2 0.5 0.5 0.75
Hose Bibb 1⁄2 2.5 2.5 ––
Hose Bibb, each additional8 1⁄2 1.0 1.0 ––
Lavatory 1⁄2 1.0 1.0 1.0
Lawn Sprinkler, each head5 –– 1.0 1.0 ––
Mobilehome or Manufactured Home, each (minimum)9 –– 6.0 –– ––
Sinks –– –– –– ––
Bar 1⁄2 1.0 2.0 ––
Clinical Faucet 1⁄2 –– 3.0 ––
Clinical Flushometer Valve with or without faucet 1 –– 8.0 ––
Kitchen, domestic with or without dishwasher 1⁄2 1.5 1.5 ––
Laundry 1⁄2 1.5 1.5 ––
Service or Mop Basin 1⁄2 1.5 3.0 ––
Washup, each set of faucets 1⁄2 –– 2.0 ––
Shower, per head 1⁄2 2.0 2.0 ––
Urinal, 1.0 GPF Flushometer Valve 3⁄4 See Footnote7 See Footnote7 ––
Urinal, greater than 1.0 GPF Flushometer Valve 3⁄4 See Footnote7 See Footnote7 ––
Urinal, flush tank 1⁄2 2.0 2.0 3.0
Nonwater Urinal with Drain Cleansing Action 1⁄2 1.0 1.0 1.0
Wash Fountain, circular spray 3⁄4 –– 4.0 ––
Water Closet, 1.6 GPF Gravity Tank 1⁄2 2.5 2.5 3.5
Water Closet, 1.6 GPF Flushometer Tank 1⁄2 2.5 2.5 3.5
Water Closet, 1.6 GPF Flushometer Valve 1 See Footnote7 See Footnote7 ––
Water Closet, greater than 1.6 GPF Gravity Tank 1⁄2 3.0 5.5 7.0
Water Closet, greater than 1.6 GPF Flushometer Valve 1 See Footnote7 See Footnote7 ––

For SI units: 1 inch = 25 mm

Notes: 1 Size of the cold branch pipe, or both the hot and cold branch pipes. 2 Appliances, appurtenances, or fixtures not referenced in this table shall be permitted to be sized by reference to fixtures having a similar flow rate and frequency of use. 3 The listed fixture unit values represent their load on the cold water building supply. The separate cold water and hot water fixture unit value for fixtures having both hot and cold water connections shall be permitted to be each taken as three-quarter of the listed total value of the fixture. 4 The listed minimum supply branch pipe sizes for individual fixtures are the nominal (I.D.) pipe size. 5 For fixtures or supply connections likely to impose continuous flow demands, determine the required flow in gallons per minute (gpm) (L/s), and add it separately to the demand in gpm (L/s) for the distribution system or portions thereof. 6 Assembly [Public Use (See Table 422.1)]. 7 Where sizing flushometer systems, see Section 610.10. 8 Reduced fixture unit loading for additional hose bibbs is to be used where sizing total building demand and for pipe sizing where more than one hose bibb is supplied by a segment of water distribution pipe. The fixture branch to each hose bibb shall be sized on the basis of 2.5 fixture units. 9 For water supply fixture unit values related to lots within mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2, Article 5, Section 1278. For water supply fixture unit values related to lots within special occupancy parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2278.

158 2025 CALIFORNIA PLUMBING CODE

WATER SUPPLY AND DISTRIBUTION

TABLE 610.4 FIXTURE UNIT TABLE FOR DETERMINING WATER PIPE AND METER SIZES
METER AND
STREET
SERVICE
(inches)		 BUILDING
SUPPLY
AND
BRANCHES
(inches)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)		 MAXIMUM ALLOWABLE LENGTH
(feet)
METER AND
STREET
SERVICE
(inches)		 BUILDING
SUPPLY
AND
BRANCHES
(inches)		 40 60 80 100 150 200 250 300 400 500 600 700 800 900 1000
PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1 PRESSURE RANGE – 30 to 45 psi1
3⁄4
 1⁄22
 6 5 4 3 2 1 1 1 0 0 0 0 0 0 0
3⁄4
 3⁄4 16 16 14 12 9 6 5 5 4 4 3 2 2 2 1
3⁄4 1 29 25 23 21 17 15 13 12 10 8 6 6 6 6 6
1
 1
 36 31 27 25 20 17 15 13 12 10 8 6 6 6 6
3⁄4 11⁄4
 36 33 31 28 24 23 21 19 17 16 13 12 12 11 11
1
 11⁄4
 54 47 42 38 32 28 25 23 19 17 14 12 12 11 11
11⁄2 11⁄4
 78 68 57 48 38 32 28 25 21 18 15 12 12 11 11
1
 11⁄2
 85 84 79 65 56 48 43 38 32 28 26 22 21 20 20
11⁄2 11⁄2
 150 124 105 91 70 57 49 45 36 31 26 23 21 20 20
2 11⁄2 151 129 129 110 80 64 53 46 38 32 27 23 21 20 20
1
 2 85 85 85 85 85 85 82 80 66 61 57 52 49 46 43
11⁄2 2 220 205 190 176 155 138 127 120 104 85 70 61 57 54 51
2 2
 370 327 292 265 217 185 164 147 124 96 70 61 57 54 51
2 21⁄2 445 418 390 370 330 300 280 265 240 220 198 175 158 143 133
PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1 PRESSURE RANGE – 46 to 60 psi1
3⁄4
 1⁄22
 7 7 6 5 4 3 2 2 1 1 1 0 0 0 0
3⁄4
 3⁄4 20 20 19 17 14 11 9 8 6 5 4 4 3 3 3
3⁄4 1 39 39 36 33 28 23 21 19 17 14 12 10 9 8 8
1
 1
 39 39 39 36 30 25 23 20 18 15 12 10 9 8 8
3⁄4 11⁄4
 39 39 39 39 39 39 34 32 27 25 22 19 19 17 16
1
 11⁄4
 78 78 76 67 52 44 39 36 30 27 24 20 19 17 16
11⁄2 11⁄4
 78 78 78 78 66 52 44 39 33 29 24 20 19 17 16
1
 11⁄2
 85 85 85 85 85 85 80 67 55 49 41 37 34 32 30
11⁄2 11⁄2
 151 151 151 151 128 105 90 78 62 52 42 38 35 32 30
2 11⁄2 151 151 151 151 150 117 98 84 67 55 42 38 35 32 30
1
 2 85 85 85 85 85 85 85 85 85 85 85 85 85 83 80
11⁄2 2 370 370 340 318 272 240 220 198 170 150 135 123 110 102 94
2 2
 370 370 370 370 368 318 280 250 205 165 142 123 110 102 94
2 21⁄2 654 640 610 580 535 500 470 440 400 365 335 315 285 267 250
PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1 PRESSURE RANGE – Over 60 psi1
3⁄4
 1⁄22
 7 7 7 6 5 4 3 3 2 1 1 1 1 1 0
3⁄4
 3⁄4 20 20 20 20 17 13 11 10 8 7 6 6 5 4 4
3⁄4 1 39 39 39 39 35 30 27 24 21 17 14 13 12 12 11
1
 1
 39 39 39 39 38 32 29 26 22 18 14 13 12 12 11
3⁄4 11⁄4
 39 39 39 39 39 39 39 39 34 28 26 25 23 22 21
1
 11⁄4
 78 78 78 78 74 62 53 47 39 31 26 25 23 22 21
11⁄2 11⁄4
 78 78 78 78 78 74 65 54 43 34 26 25 23 22 21
1
 11⁄2
 85 85 85 85 85 85 85 85 81 64 51 48 46 43 40
11⁄2 11⁄2
 151 151 151 151 151 151 130 113 88 73 51 51 46 43 40
2 11⁄2 151 151 151 151 151 151 142 122 98 82 64 51 46 43 40
1
 2 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85
11⁄2 2 370 370 370 370 360 335 305 282 244 212 187 172 153 141 129
2 2
 370 370 370 370 370 370 370 340 288 245 204 172 153 141 129
2 21⁄2 654 654 654 654 654 650 610 570 510 460 430 404 380 356 329

For SI units: 1 inch = 25 mm, 1 foot = 304.8 mm, 1 pound-force per square inch = 6.8947 kPa

Notes: 1 Available static pressure after head loss. 2 Building supply, not less than 3 ⁄ 4 of an inch (20 mm) nominal size.

WATER SUPPLY AND DISTRIBUTION

In the example below, fixture units assigned to each section of pipe are computed. Each capital letter refers to the section of pipe above it unless otherwise shown.

LAV LAV UR UR WC WC

F E D C B A
V LAV UR UR WC WC
G H I J K L
M
LAV UR WC LAV UR W
S R Q P O N
T
T
G H I J K L		 T
G H I J K L
T
G H I J K L		 S R Q P O N

A: 1 WC = 40 F.U.

B: 2 WC = 70 F.U.

C: 2 WC (70) + 1 UR (20) = 90 F.U.

D: 2 WC (70) + 2 UR (35) = 105 F.U.

E: 2 WC (70) + 2 UR (35) + 1 LAV (1) = 106 F.U.

F: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 107 F.U.

G: 1 LAV = 1 F.U.

H: 2 LAV = 2 F.U.

I: 2 LAV (2) + 1 UR (20) = 22 F.U.

J: 2 LAV (2)+ 2 UR (35) = 37 F.U.

K: 2 LAV (2) + 2 UR (35) + 1 WC (40) = 77 F.U.

L: 2 LAV (2) + 2 UR (35) + 2 WC (70) = 107 F.U.

M: 4 WC (105) + 4 UR (53) + 4 LAV (4) = 162 F.U.

N: 1 WC = 40 F.U.

O: 1 WC (40) + 1 UR (20) = 60 F.U.

P: 1 WC (40) + 1 UR (20) + 1 LAV (1) = 61 F.U.

Q: 2 WC (70) + 1 UR (20) + 1 LAV (1) = 91 F.U.

R: 2 WC (70) + 2 UR (35) + 1 LAV (1) = 106 F.U.

S: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 107 F.U.

T: 6 WC (125) + 6 UR (63) + 6 LAV (6) = 194 F.U.

LAV LAV UR UR WC WC

EXAMPLE 610.10

SIZING METHOD FOR PUBLIC USE FIXTURES

USING TABLE 610.10

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▸Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
  5. Chapter 5 — WATER HEATERS
  6. ▸Chapter 6 — WATER SUPPLY AND DISTRIBUTION
    Overview
    1. 601.1 Applicability.
    2. 601.2 Water Supply and Flushing.
    3. 601.3 Identification of a Potable and Nonpotable Water System.
    4. 601.4 Schools of Cosmetology and Cosmetological
    5. 601.5 Meat and Poultry Processing Plants.
    6. 601.6 Collection Centers and Facilities. [AGR]
    7. 601.7 Renderers. [AGR]
    8. 601.8 Horse Meat and Pet Food Establishments. [AGR]
    9. 602.1 Prohibited Installation.
    10. 602.2 Cross-Contamination.
    11. 602.3 Backflow Prevention.
    12. 602.4 Approval by Authority.
    13. 603.1 General.
    14. 603.2 Approval of Devices or Assemblies.
    15. 603.3 Backflow Prevention Devices, Assemblies, and Methods.
    16. 603.4 General Requirements.
    17. 603.5 Specific Requirements.
    18. 604.1 Pipe, Tube, and Fittings.
    19. 604.2 Lead Content.
    20. 604.3 Copper or Copper Alloy Tube.
    21. 604.4 Hard-Drawn Copper or Copper Alloy Tubing.
    22. 604.5 Flexible Connectors.
    23. 604.6 Cast-Iron Fittings.
    24. 604.7 Malleable Iron Fittings.
    25. 604.8 Previously Used Piping and Tubing.
    26. 604.9 Epoxy Coating.
    27. 604.10 Plastic Materials.
    28. 604.11 Solder.
    29. 604.12 Flexible Corrugated Connectors.
    30. 604.13 Water Heater Connectors.
    31. 605.1 Copper or Copper Alloy Pipe, Tubing,
    32. 605.2 CPVC Plastic Pipe and Joints.
    33. 605.3 CPVC/AL/CPVC Plastic Pipe and Joints.
    34. 605.4 Ductile Iron Pipe and Joints.
    35. 605.5 Galvanized Steel Pipe and Joints.
    36. 605.6 PE
    37. 605.7 PE-AL-PE Plastic
    38. 605.8 PE-RT.
    39. 605.9 PEX
    40. 605.10 PEX-AL-PEX Plastic Tubing and Joints.
    41. 605.11 Polypropylene (PP) Piping and Joints.
    42. 605.12 PVC
    43. 605.13 Stainless Steel Pipe
    44. 605.14 Slip Joints.
    45. 605.15 Dielectric Unions.
    46. 605.16 Joints Between Various Materials.
    47. 606.1 General.
    48. 606.2 Fullway Valve.
    49. 606.3 Multidwelling Units.
    50. 606.4 Multiple Openings.
    51. 606.5 Control Valve.
    52. 606.6 Accessible.
    53. 606.7 Multiple Fixtures.
    54. 606.8 [OSHPD 1, 1R, 2, 3, 4 & 5]
    55. 606.9 Check Valve Required.
    56. 606.10 Leak Detection Devices.
    57. 607.1 General.
    58. 607.2 Private Well Water Tanks.
    59. 607.3 Potable Water Tanks.
    60. 607.4 Venting.
    61. 607.5 Overflow.
    62. 607.6 Valves.
    63. 608.1 Inadequate Water Pressure.
    64. 608.2 Excessive Water Pressure.
    65. 608.3 Expansion Tanks, and Combination Tempera-ture and Pressu…
    66. 608.4 Pressure Relief Valves.
    67. 608.5 Discharge Piping.
    68. 608.6 Water-Heating Devices.
    69. 608.7 Vacuum Relief Valves.
    70. 609.1 Installation.
    71. 609.2 Trenches.
    72. 609.3 Under Concrete Slab.
    73. 609.4 Testing.
    74. 609.5 Unions.
    75. 609.6 Location.
    76. 609.7 Abutting Lot.
    77. 609.8 Pumps.
    78. 609.9 Low-Pressure Cutoff Required on Booster Pumps for Water …
    79. 609.10 Disinfection of Potable Water System.
    80. 609.11 Water Hammer.
    81. 609.12 Pipe Insulation.
    82. 610.1 Size.
    83. 610.2 Pressure Loss.
    84. 610.3 Quantity of Water.
    85. 610.4 Sizing Water Supply and Distribution Systems.
    86. 610.5 Sizing per Appendices A, C,
    87. 610.6 Friction and Pressure Loss.
    88. 610.7 Conditions for Using Table 610.4.
    89. 610.8 Size of Meter and Building Supply Pipe Using Table 610.4.
    90. 610.9 Size of Branches.
    91. 610.10 Sizing for Flushometer Valves.
    92. 610.11 Sizing Systems for Flushometer Tanks.
    93. 610.12 Sizing for Velocity.
    94. 610.13 Exceptions.
    95. 611.1 Application.
    96. 611.2 Air Gap Discharge.
    97. 611.3 Connection Tubing.
    98. 611.4 Sizing of Residential Softeners.
    99. 612.1 Installation.
    100. 613.1 The domestic water-heating equipment and distribu-
    101. 613.2 At least two pieces of hot-water-heating equipment shall
    102. 613.3 Instantaneous heaters are permitted for supplying hot
    103. 613.4 Water storage tanks shall be fabricated of corrosion-
    104. 613.5 Temperature control valves shall be provided to auto-
    105. 613.6 Hot-water distribution system serving patient care areas
    106. 613.7 At fixtures where water exceeding 125°F (52°C) is acces-
    107. 613.8 Sectionalizing valves shall be provided as required by S…
    108. 613.9 Hot water distribution shall include test ports and valved
    109. 614.1 Dialysis water feedlines shall be CPVC (chlorinated
    110. 614.2 All piping for multistation or central dialysis units sh…
    111. 614.3 All valves shall be located in accessible locations.
    112. 614.4 Piping and valves shall be identified according to their…
    113. 614.5 A means of preventing backwashing or flushing of the
    114. 614.6 A continuous audible alarm shall sound at the nurses’
    115. 614.7 Water treatment equipment and water used for dialysis
    116. 614.8 A diagram of all piping as installed shall be posted at …
    117. 615.1 Uses Not Permitted.
    118. 615.2 [OSHPD 1, 1R, 2, 3, 4 & 5]
    119. 615.3 [OSHPD 1, 1R, 2, 3, 4 & 5]
    120. 616.1 For new acute care hospital buildings submitted after
    121. 616.2 The emergency supply of water shall be provided at ade-
    122. 616.3 Storage tank connections and circulation shall be
  7. Chapter 7 — SANITARY DRAINAGE
  8. Chapter 8 — INDIRECT WASTES
  9. Chapter 9 — VENTS
  10. Chapter 10 — TRAPS AND INTERCEPTORS
  11. Chapter 11 — STORM DRAINAGE
  12. Chapter 12 — FUEL GAS PIPING
  13. Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
  14. Chapter 14 — FIRESTOP PROTECTION
  15. Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
  16. Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
  19. Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
  20. Appendix C — ALTERNATE PLUMBING SYSTEMS
  21. Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
  22. Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
  23. Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS
  25. Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
  26. Appendix I — INSTALLATION STANDARDS
  27. Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
  28. Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
  29. Appendix L — SUSTAINABLE PRACTICES
  30. Appendix M — PEAK WATER DEMAND CALCULATOR
  31. Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …
  32. Appendix O — NON-SEWERED SANITATION SYSTEMS
  33. Appendix P — PROFESSIONAL QUALIFICATIONS
  34. Appendix Q — INDOOR HORTICULTURAL FACILITIES
  35. Appendix R — TINY HOUSES
  36. Appendix S — ONSITE STORMWATER TREATMENT SYSTEMS

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