Fixture & appliance definitions (L–S)

Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:

• CPC § 0.79 High relevance — show source text

  Type L Gas Vent. A venting system consisting of listed vent piping and fittings for use with oil-burning appliances listed for use with Type L or with listed gas appli ances.

  Vertical Pipe. A pipe or fitting that is installed in a vertical position or that makes an angle of not more than 45 degrees (0.79 rad) with the vertical.

  225.0 – W –

  Wall-Hung Water Closet. A water closet installed in such a way that no part of the water closet touches the floor.

  Waste. See Liquid Waste and Industrial Waste.

  Waste Pipe. A pipe that conveys only liquid waste, free of fecal matter.

  Water Closet. [HCD 1] “Water Closet” is a plumbing fix- ture (which may be used for both solids and liquids) in which the waste matter is removed by flushing with water.

  Water-Conditioning or Treating Device. A device that conditions or treats a water supply to change its chemical content or remove suspended solids by filtration.

  Water Distribution Pipe. In a building or premises, a pipe that conveys potable water from the building supply pipe to the plumbing fixtures and other water outlets.

  Water Hammer Arrester. A device designed to provide protection against hydraulic shock in the building water supply system.

  Water Heater, Dual Purpose. An appliance intended to be a heat source for both space heating and domestic hot water applications.

  Water Heater or Hot Water Heating Boiler. An appliance designed primarily to supply hot water for domestic or commercial purposes and equipped with automatic controls limiting water temperature to a maximum of 210°F (99°C).

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  DEFINITIONS

  Water Main (Street Main). A water supply pipe for public or community use.

  Water Station. A designated location intended to provide access to drinking water through a device or appliance.

  Water Supply System. The building supply pipe, the water distribution pipes, and the necessary connecting pipes, fittings, control valves, backflow prevention devices, and all appurtenances carrying or supplying potable water in or adjacent to the building or premises.

  Water/Wastewater Utility. A public or private entity which may treat, deliver or do both functions to reclaimed (recycled) water, potable water, or both to wholesale or retail cus tomers.

  Welder, Pipe. A person who specializes in the welding of pipes and holds a valid certificate of competency from a recognized testing laboratory, based on the requirements of the ASME Boiler and Pressure Vessels code, Section IX.

  Wet Procedure Locations. The area in a patient care space where a procedure is performed that is normally subject to wet conditions while patients are present, including standing fluids on the floor or drenching of the work area, either of which condition is intimate to the patient or staff. [NFPA 99:3.3.187]

  Wet Vent. A vent that also serves as a drain.

  Whirlpool Bathtub. A bathtub fixture equipped and fitted with a circulating piping system designed to accept, circulate, and discharge bathtub water upon each use.

  226.0 – X –

  No definitions.

  227.0 – Y –

• CPC § 210.0 High relevance — show source text

  Note: For the purpose of applying the standards contained in this code, “Graywater” as defined above, has the same meaning as “gray water”, “grey water”, and “greywater”.

  Gray Water System. [BSC-CG & HCD 1] A system designed to collect gray water on-site for reuse or distribution to an irrigation or disposal field. A gray water system may include, on-site treated nonpotable water devices or equip- ment, tanks, valves, filters, pumps or other appurtenances along with piping and receiving landscape.

  Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and greases (FOG) from a wastewater discharge.

  Grease Removal Device (GRD). A hydromechanical grease interceptor that automatically, mechanically removes non-petroleum fats, oils and grease (FOG) from the interceptor, the control of which are either automatic or manually initiated.

  Grounding Electrode. A conducting object through which a direct connection to earth is established. [NFPA 70:100 (Part I)]

  Groundwater. Water that exists beneath the earth’s surface.

  Group Wash Fixture. A lavatory that allows more than one person to utilize the fixture at the same time. The fixture has one or more drains and one or more faucets.

  210.0 – H –

  Handwashing Fixture. [OSHPD 1, 2, 3, 4, 5 & 6] Hand- washing fixtures consist of faucet, trim and lavatory as described:

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  DEFINITIONS

  (1) Faucets and Trim

  a. Handwashing fixtures used by medical and nursing staff, patients, and food handlers shall have fittings such that all controls can be operated without the use of hands.

  i. Wrist or elbow blades shall be permitted unless otherwise noted in Table 4-2.

  ii. Blade handles used for this purpose shall be at least 4 inches (102 mm) in length.

  b. Sensor operated fixtures shall be capable of func- tioning during loss of normal power.

  c. Faucets shall not be equipped with an aerator but may be equipped with a non-aerating laminar flow device. The flow rate for handwashing fixtures shall not be less than 1.0 (3.79 L) gallons per minute.

  d. Faucets shall be equipped with gooseneck spouts. A gooseneck spout shall be deck or fixture-mounted so the discharge point of the spout return is at least 10 inches (25.4 mm) above the bottom of the basin. The water shall not flow directly from the spout into the drain. The gooseneck spout shall have a 180(+/-10) degree return with a constant radius and the outlet pointing vertically down.

  e. Faucets shall be equipped with gooseneck spouts. A gooseneck spout is a deck or fixture-mounted spout so the discharge point of the spout return is at least 5 inches (127 mm) above the fixture rim.

• CPC § 4-2. Medium relevance — show source text

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  DEFINITIONS

  (1) Faucets and Trim

  a. Handwashing fixtures used by medical and nursing staff, patients, and food handlers shall have fittings such that all controls can be operated without the use of hands.

  i. Wrist or elbow blades shall be permitted unless otherwise noted in Table 4-2.

  ii. Blade handles used for this purpose shall be at least 4 inches (102 mm) in length.

  b. Sensor operated fixtures shall be capable of func- tioning during loss of normal power.

  c. Faucets shall not be equipped with an aerator but may be equipped with a non-aerating laminar flow device. The flow rate for handwashing fixtures shall not be less than 1.0 (3.79 L) gallons per minute.

  d. Faucets shall be equipped with gooseneck spouts. A gooseneck spout shall be deck or fixture-mounted so the discharge point of the spout return is at least 10 inches (25.4 mm) above the bottom of the basin. The water shall not flow directly from the spout into the drain. The gooseneck spout shall have a 180(+/-10) degree return with a constant radius and the outlet pointing vertically down.

  e. Faucets shall be equipped with gooseneck spouts. A gooseneck spout is a deck or fixture-mounted spout so the discharge point of the spout return is at least 5 inches (127 mm) above the fixture rim.

  (2) Lavatory

  a. Shall be designed and installed to prevent splashing outside of the lavatory.

  b. Shall be well-fitted and sealed to prevent water leaks onto or into the cabinetry or wall spaces.

  c. Design of lavatories and cabinetry shall not permit storage beneath the fixture basin.

  d. Shall be constructed of nonporous material. Hangers. See Supports. Health Care Facility’s Governing Body. The person or persons who have the overall legal responsibility for the operation of a health care facility. [NFPA 99:3.3.74] High Hazard. See Contamination. Horizontal Branch. A drainpipe extending laterally from soil or waste stack or building drain with or without vertical sections or branches, which receives the discharge from one or more fixture drains and conducts it to the soil or waste stack or the building drain. Horizontal Pipe. A pipe or fitting that is installed in a horizontal position or which makes an angle of less than 45 degrees (0.79 rad) with the horizontal.

  Hot Water. Water at a temperature exceeding or equal to 120°F (49°C). House Drain. See Building Drain. House Sewer. See Building Sewer. Hydromechanical Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and

  grease (FOG) from a wastewater discharge and is identified by flow rate, and separation and retention efficiency. The design incorporates air entrainment, hydromechanical separation, interior baffling, or barriers in combination or separately, and one of the following:

  (1) External flow control, with an air intake (vent), directly connected.

• CPC § 0.06 Medium relevance — show source text

  For SI units: 1 inch = 25 mm, 1 gallon per minute = 0.06 L/s

  Notes: 1 For interceptor sizing by the fixture capacity see the example below. 2 1 ∕ 4 inch slope per foot (20.8 mm/m) based on Manning’s formula with friction factor N = 0.012.

  EXAMPLE 1014.2.1

  SIZING HYDROMECHANICAL GREASE INTERCEPTOR(S)

  USING FIXTURE CAPACITY

  Step 1: Determine the flow rate from each fixture.

  [Length] X [Width] X [Depth] / [231] = Gallons X [0.75 fill factor] / [Drain

  Period (1 minute or 2 minutes)]

  Step 2: Calculate the total load from fixtures that discharge into

  the interceptor.

  FIXTURES	COMPART- MENTS	LOAD (gallons)	SIZE OF GREASE INTERCEPTOR ONE-MINUTE DRAINAGE PERIOD (gpm)	TWO- MINUTE DRAINAGE PERIOD (gpm)
  Compartment size	––	––	––	––
  24 inches x 24 inches x 12 inches	2	44.9	––	––
  Hydrant	––	3	––	––
  Rated Appliance	––	2	––	––
  ––	––	49.9	50	25

  For SI units: 1 inch = 25.4 mm, 1 gallon per minute = 0.06 L/s, 1 gallon =

  3.785 L

  1014.3 Gravity Grease Interceptors. Required gravity grease interceptors shall comply with the provisions of Section 1014.3.1 through Section 1014.3.7.

  1014.3.1 General. The provisions of this section shall apply to the design, construction, installation, and testing of commercial kitchen gravity grease interceptors.

  1014.3.2 Waste Discharge Requirements. Waste discharge in establishments from fixtures and equipment

  For SI units: 1 inch = 25.4 mm, 1 gallon per minute = 0.06 L/s, 1 gallon =

  3.785 L

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  TRAPS AND INTERCEPTORS

  which contain grease, including but not limited to, scullery sinks, pot and pan sinks, dishwashers, soup kettles, and floor drains located in areas where grease-containing materials exist, shall be permitted to be drained into the sanitary waste through the interceptor where approved by the Authority Having Jurisdiction.

  1014.3.2.1 Toilets and Urinals. Toilets, urinals, and other similar fixtures shall not drain through the interceptor.

  1014.3.2.2 Inlet Pipe. Waste shall enter the interceptor through the inlet pipe.

  1014.3.3 Design. Gravity interceptors shall be constructed in accordance with the applicable standard in Chapter 17 or the design approved by the Authority Having Jurisdiction.

• CPC § 2.0 Medium relevance — show source text

  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.

  [A] FIXTURE	Col2	[B] ENTER NUMBER OF FIXTURES	[C] PROBABILITY OF USE (%)	[D] ENTER FIXTURE FLOW RATE (GPM)	[E] MAXIMUM RECOMMENDED FIX- TURE FLOW RATE (GPM)
  1	Bar Sink	0	2.0	1.5	1.5
  2	Bathtub	0	1.0	5.5	5.5
  3	Bidet	0	1.0	2.0	2.0
  4	Clothes Washer	1	5.5	3.5	3.5
  5	Combination Bath/Shower	1	5.5	5.5	5.5
  6	Dishwasher	1	0.5	1.3	1.3
  7	Kitchen Faucet	1	2.0	2.2	2.2
  8	Laundry Faucet	0	2.0	2.0	2.0
  9	Lavatory Faucet	1	2.0	1.5	1.5
  10	Shower, per head	0	4.5	2.0	2.0
  11	Water Closet, 1.28 GPF Gravity Tank	1	1.0	3.0	3.0
  12	Pot Filler	1	2.0	5.5	6.0
  13	Dog Bath	1	1.0	5.5	6.0
  14	Other Fixture 3	0	0.0	0.0	6.0
  Total Number of Fixtures	Total Number of Fixtures	8		RESET	RUN WATER DEMAND CALCULATOR
  99th Percentile Demand Flow =	99th Percentile Demand Flow =	11.0 GPM

  For SI units: 1 gallon per minute = 0.66 L/s, 1 gallon = 3.785 L

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

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  APPENDIX M

  [A] FIXTURE	Col2	[B] ENTER NUMBER OF FIXTURES	[C] PROBABILITY OF USE (%)	[D] ENTER FIXTURE FLOW RATE (GPM)	[E] MAXIMUM RECOMMENDED FIX- TURE FLOW RATE (GPM)
  1	Bar Sink	0	2.0	1.5	1.5
  2	Bathtub	0	1.0	5.5	5.5
  3	Bidet	0	1.0	2.0	2.0
  4	Clothes Washer	1	5.5	3.5	3.

• CPC § 1014.2.1 Medium relevance — show source text

  designed and installed so that the total flow through such device or devices shall at no time be greater than the rated flow of the connected grease interceptor. No flow control device having adjustable or removable parts shall be approved. The vented flow control device shall be located such that no system vent shall be between the flow control and the grease interceptor inlet. The vent or air inlet of the flow control device shall connect with the sanitary drainage vent system, as elsewhere required by this code, or shall terminate through the roof of the building, and shall not terminate to the free atmosphere inside the building.

  Exception: Listed grease interceptors with integral flow controls or restricting devices shall be installed in an accessible location in accordance with the manufacturer’s installation

  instructions.

  1014.2.1 Capacity. The total capacity in gallons (gal) (L) of fixtures discharging into a hydromechanical grease interceptor shall not exceed two and one-half times the certified gallon per minute (gpm) (L/s) flow rate of the interceptor in accordance with Table 1014.2.1.

  For this section, the term “fixture” shall mean and include each plumbing fixture, appliance, apparatus, or other equipment required to be connected to or discharged into a grease interceptor by a provision of this section.

  1014.2.2 Vent. A vent shall be installed downstream of

  hydromechanical grease interceptors in accordance with the requirements of this code.

  TABLE 1014.2.1

  HYDROMECHANICAL GREASE INTERCEPTOR SIZING USING GRAVITY FLOW RATES [1]

  DIAMETER OF GREASE WASTE PIPE (inches)	MAXIMUM FULL PIPE FLOW (gpm)2	SIZE OF GREASE INTERCEPTOR	Col4
  DIAMETER OF GREASE WASTE PIPE (inches)	MAXIMUM FULL PIPE FLOW (gpm)2	ONE-MINUTE DRAINAGE PERIOD (gpm)	TWO-MINUTE DRAINAGE PERIOD (gpm)
  2	20	20	10
  3	60	75	35
  4	125	150	75
  5	230	250	125
  6	375	400	200

  For SI units: 1 inch = 25 mm, 1 gallon per minute = 0.06 L/s

  Notes: 1 For interceptor sizing by the fixture capacity see the example below. 2 1 ∕ 4 inch slope per foot (20.8 mm/m) based on Manning’s formula with friction factor N = 0.012.

  EXAMPLE 1014.2.1

  SIZING HYDROMECHANICAL GREASE INTERCEPTOR(S)

  USING FIXTURE CAPACITY

  Step 1: Determine the flow rate from each fixture.

  [Length] X [Width] X [Depth] / [231] = Gallons X [0.75 fill factor] / [Drain

  Period (1 minute or 2 minutes)]

  Step 2: Calculate the total load from fixtures that discharge into

  the interceptor.

• CPC § 208.0 Medium relevance — show source text

  Existing Work. A plumbing system or any part thereof that has been installed prior to the effective date of this code.

  Expansion Joint. A fitting or arrangement of pipe and fittings that permit the contraction and expansion of a piping system.

  Expansion Tank. A vessel used to protect potable water systems from excessive pressure.

  208.0 – F –

  F Rating. The time period that the penetration firestop system limits the spread of fire through the penetration, where tested in accordance with ASTM E814 or UL 1479.

  Fixture Branch. A water supply pipe between the fixture supply pipe and the water distribution pipe.

  Fixture Drain. The drain from the trap of a fixture to the junction of that drain with any other drainpipe.

  Fixture Fitting. A device that controls and guides the flow of water.

  Fixture Supply. A water supply pipe is connecting the fixture with the fixture branch.

  Fixture Unit. A quantity in terms of which the load-producing effects on the plumbing system of different kinds of plumbing fixtures are expressed on some arbitrarily chosen scale.

  Flammable Vapor or Fumes. The concentration of flammable constituents in the air that exceeds 25 percent of its lower flammability limit (LFL).

  Flood Hazard Area. The greater of the following two areas:

  (1) The area within a floodplain subject to a 1 percent or greater chance of flooding in any given year.

  (2) The area designated as a flood hazard area on a community’s flood hazard map, or otherwise legally designated.

  Flood Level. See Flooded.

  Flood-Level Rim. The top edge of a receptor or fixture from which water overflows.

  Flooded. A fixture is flooded where the liquid therein rises to the flood-level rim.

  Flue Collar. That portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system. [NFPA 54:3.3.44]

  Flush Tank. A tank located above or integral with water closets, urinals, or similar fixtures for the purpose of flushing the usable portion of the fixture.

  Flush Valve. A valve located at the bottom of a tank for flushing water closets and similar fixtures.

  Flushometer Tank. A tank integrated within an air accumulator vessel that is designed to discharge a predetermined quantity of water to fixtures for flushing purposes.

  Flushometer Valve. A valve that discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure.

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  DEFINITIONS

  FOG Disposal System. A grease interceptor that reduces nonpetroleum fats, oils, and grease (FOG) in the effluent by separation, mass, and volume reduction.

  Food Establishment . [DPH] Any room, building, place or portion thereof, maintained, used or operated for purpose of storing, preparing, serving, packaging, transporting, sal- vaging or otherwise handling food at the retail level.

  Fuel Gas. Natural, manufactured liquefied petroleum, or a mixture of these.

  209.0 – G –

  Gang or Group Shower. Two or more showers in a com mon area.

• CPC § 207.0 Medium relevance — show source text

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  DEFINITIONS

  as otherwise provided by statute, to have adequate personnel and expertise to carry out the testing of systems, materials, and construction fixtures or appliances. Area Drain. A receptor designed to collect surface or storm water from an open area. Aspirator. A fitting or device supplied with water or other fluid under positive pressure that passes through an integral orifice or constriction, causing a vacuum. Authority Having Jurisdiction. The organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, installations, or procedures. The Authority Having Jurisdiction shall be a federal, state, local, or other regional department or an individual such as a plumbing official, mechanical official, labor department official, health department official, building official, or others having statutory authority. In the absence of statutory authority, the Authority Having Jurisdiction may be some other responsible party. This definition shall include the Authority Having Jurisdiction’s duly authorized representative.

  [HCD 1 & HCD 2] “Authority Having Jurisdiction” shall mean “Enforcing Agency” as defined in Section 207.0 of this code.

  204.0 – B –

  Backflow. The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from sources other than its intended source. See Backpressure Backflow and Backsiphonage. Backflow Connection. An arrangement whereby backflow

  can occur.

  Backflow Preventer. A backflow prevention device, an assembly, or another method to prevent backflow into the potable water system. Backpressure Backflow. Backflow due to an increased pressure above the supply pressure, which may be due to pumps, boilers, gravity, or other sources of pressure. Backsiphonage. The flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a pressure less than atmospheric in such pipe. See Backflow. Backwater Valve. A device installed in a drainage system to prevent reverse flow.

  Bathroom. A room equipped with a shower, bathtub, or combination bath/shower.

  Bathroom, Half. A room equipped with only a water closet and lavatory. Bathroom Group. Any combination of fixtures, not to exceed one water closet, two lavatories, either one bathtub or one combination bath/shower, and one shower, and may include a bidet and an emergency floor drain. Battery of Fixtures. A group of two or more similar, adjacent fixtures that discharge into a common horizontal waste or soil branch.

  Bedpan Steamer. A fixture that is used to sterilize bedpans by way of steam.

  Body Spray. A shower device for spraying water onto a bather from other than the overhead position.

  Boiler Blowoff. An outlet on a boiler to permit emptying or discharge of sediment.

• CPC § 710.2 Medium relevance — show source text

  710.2 Sewage Discharge. Drainage piping serving fixtures that are located below the crown level of the main sewer shall discharge into an approved watertight sump or receiving tank, so located as to receive the sewage or wastes by gravity. From such sump or receiving tank, the sewage or other liquid wastes shall be lifted and discharged into the building drain or building sewer by approved ejectors, pumps, or other equally efficient approved mechanical devices. 710.3 Sewage Ejector and Pumps. A sewage ejector or sewage pump receiving the discharge of water closets or urinals:

  (1) Shall have a discharge capacity of not less than 20 gpm (1.26 L/s).

  (2) In single dwelling units, the ejector or pump shall be capable of passing an 1 [1] ⁄ 2 inch (38 mm) diameter solid ball, and the discharge piping of each ejector or pump

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  SANITARY DRAINAGE

  shall have a backwater valve and gate valve, and be not less than 2 inches (50 mm) in diameter.

  (3) In other than single-dwelling units, the ejector or pump shall be capable of passing a 2 inch (51 mm) diameter solid ball, and the discharge piping of each ejector or pump shall have a backwater valve and gate valve, and be not less than 3 inches (80 mm) in diameter.

  [HCD 1 & HCD 2] The minimum size of any pump or any discharge pipe from a sump having a water closet connected thereto shall be not less than 2 inches (50 mm). 710.4 Discharge Line. The discharge line from such ejector, pump, or another mechanical device shall be of approved pressure rated material and be provided with an accessible backwater or swing check valve and gate or ball valve. Where the gravity drainage line to which such discharge line connects is horizontal, the method of connection shall be from the top through a wye branch fitting. The gate or ball valve shall be located on the discharge side of the backwater or check valve.

  Gate or ball valves, where installed in drainage piping, shall be fullway type with working parts of corrosion-resistant metal. Sizes 4 inches (100 mm) or more in diameter shall have cast-iron bodies and sizes less than 4 inches (100 mm), cast-iron or copper alloy bodies. 710.5 Size of Building Drains and Sewers. Building drains or building sewers receiving a discharge from a pump or ejector shall be adequately sized to prevent overloading. Two fixture units shall be allowed for each gallon per minute (L/s) of flow. 710.6 Backwater Valves. Backwater valves, gate valves, fullway ball valves, unions, motors, compressors, air tanks, and other mechanical devices required by this section shall be located where they will be accessible for inspection and repair and, unless continuously exposed, shall be enclosed in a masonry pit fitted with an adequately sized removable

  cover.

  Backwater valves shall comply with ASME A112.14.1 or IAPMO IGC 305, and have bodies of cast-iron, plastic, copper alloy, or other approved materials; shall have noncorrosive bearings, seats, and self-aligning discs; and shall be constructed to ensure a positive mechanical seal.

• CPC § 710.2 Medium relevance — show source text

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  INDEX

  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 . . . . . . . . . . . . . . . . . .601.2.1, 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, A 105.3,

  Table C 303.2, L 502.5,

  L 502.7, L 502.7.3

  Materials . . . . . . . . . . . . . . . . . . . . .604.0, Table 604.1,

  1503.9.2 – 1503.9.4,

  1505.7, 1506.7,

  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,

• CPC § 103.3 Medium relevance — show source text

  R 103.3 Water Heaters. Water heaters shall be installed in accordance with Chapter 5 and the manufacturer’s recommendations and instructions.

  R 103.4 Potable Water Sources. Where a public water supply system is available, it shall be used. Private or alternate water sources shall comply with the potable water standards of the state, and local health authority. R 103.5 Water Supply to Fixtures. Each plumbing fixture shall be provided with an adequate supply of potable water in accordance with Chapter 6.

  R 103.6 Protection of Potable Water. The potable water supply shall be protected from pollution and contamination in accordance with Section 602.0 and Section 603.0. Backflow prevention shall be in accordance with Table 603.2.

  R 103.7 Water-Treatment Equipment. Where installed, water-treatment equipment shall comply with the requirements of Section 611.0.

  R 103.8 Testing. Installations of water supply, drainage, and venting systems shall be tested and inspected in accordance with the requirements of this code.

  R 201.0 Tiny House Fixtures.

  R 201.1 Fixtures. Plumbing fixtures shall comply with the requirements of Chapter 4.

  R 201.2 Kitchen. Each tiny house shall be provided with a kitchen sink.

  R 201.3 Bathroom. Each tiny house shall be provided with not less than one water closet, one lavatory, and one bath, shower or combination bath/shower.

  R 201.4 Bathtubs and Whirlpool Bathtubs. Where installed, bathtubs and whirlpool bathtubs shall be in accordance with Section 409.0.

  R 201.5 Showers Compartments. Where installed, shower compartment enclosures shall be not less than 30 inches (762 mm) wide by 30 inches (762 mm) long.

  R 201.6 Water Closet. Water closets shall be in accordance

  with Section 411.0.

  R 201.7 Lavatories. Lavatories shall be in accordance with

  Section 407.0.

  R 202.0 Tiny House Water Supply System. R 202.1 Water Service Outlet. Each tiny house shall be provided with a water service outlet delivering potable water. The water service outlet riser shall be not less than ¾ of an inch (20 mm) nominal pipe size. R 202.2 Sizing Water Supply and Distribution Sys- tems. Water distribution systems shall be sized in accordance with Section 610.0. Water supply piping, joints, and connections shall be installed in accordance with Chapter 6. R 202.3 Pressure. Each tiny house water distribution system shall be so designed and maintained at not less than 15 pounds force per square inch (psi) (103 kPa) at each fixture inlet in accordance with Section 608.1. Water pressure exceeding 80 psi (552 kPa), shall be limited in accordance with Section 608.2.

  R 203.0 Tiny House Drain, Waste, and Vent (DWV) System. R 203.1 General. Sanitary drain, waste, and vent (DWV) systems shall be installed in accordance with Chapter 7 and Chapter 9. The DWV system shall connect to the public sanitary waste system. Private sewage disposal systems shall be permitted where approved by the Authority Having Jurisdiction. See Appendix H for private sewage disposal system general guidelines.

• CPC § 207.0 Medium relevance — show source text

  Disposal Field. [BSC-CG & HCD 1] An intended desti- nation for gray water, including but not limited to, a mulch basin or receiving landscape feature, gray water leach field, or other approved method of disposal.

  34 2025 CALIFORNIA PLUMBING CODE

  ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

  DEFINITIONS

  Domestic Sewage. The liquid and water-borne wastes derived from the ordinary living processes, free from industrial wastes, and of such character as to permit satisfactory disposal, without special treatment, into the public sewer or by means of a private sewage disposal system.

  Downspout. The rain leader from the roof to the building storm drain, combined building sewer, or other means of disposal located outside of the building. See Conductor and Leader.

  Drain. A pipe that carries waste or waterborne wastes in a building drainage system. Drainage System. Includes all the piping within public or private premises that conveys sewage, storm water, or other liquid wastes to a legal point of disposal, but does not include the mains of a public sewer system or a public sewage treatment or disposal plant.

  Drinking Fountain. A plumbing fixture connected to the potable water distribution system and sanitary drainage system that provides drinking water in a flowing stream so that the user can consume water directly from the fixture without the use of accessories. Drinking fountains should also incorporate a bottle filling station and can incorporate a water filter and a cooling system for chilling the drinking water.

  Dry Vent. A vent that does not receive the discharge of any sewage or waste. Durham System. Soil or waste system in which all piping is threaded pipe, tubing, or other such rigid construction, using recessed drainage fittings to correspond to the types of piping.

  207.0 – E –

  Effective Ground-Fault Current Path. An intentionally constructed, low impedance electrically conductive path designed and intended to carry current under ground-fault conditions from the point of a ground fault on a wiring system to the electrical supply source and that facilitates the operation of the overcurrent protective device or ground-fault detectors. [NFPA 70:100]

  Effective Opening. The minimum cross-sectional area at the point of water supply discharge measured or expressed in terms of (1) diameter of a circle or (2) where the opening is not circular, the diameter of a circle of equivalent cross-sectional area. (This applies to an air gap).

  Emergency Floor Drain. A floor drain that does not receive discharge from any fixture drain or indirect waste pipe, and serves to protect from damage where accidental spills, leaks or fixture backups occur.

  Enforcing Agency. [BSC, BSC-CG, HCD 1, HCD 2 & HCD 1-AC] “Enforcing Agency” is the designated depart- ment or agency as specified by statute or regulation.

  Essentially Nontoxic Transfer Fluid. A fluid generally recognized as safe by the Food and Drug Administration (FDA) as food grade. Exam Room Sink. A sink used in the patient exam room of a medical or dental office with a primary purpose of the washing of hands.