Design and construction.
All plumbing fixtures, appliances and equipment shall be designed and constructed to:
Prevent nonpotable liquids, solids or gasses from being introduced into a potable water supply system through cross-connections.
Plumbing fixtures shall have smooth surfaces that are impervious to water.
All plumbing fixture fittings which are end-point devices, covered by the scope of NSF 61, section 9 and installed to supply water intended for human ingestion, shall conform to NSF 61, section 9.
SPS 384.20 Note
Note: The scope of NSF 61, annex G, defines which devices are intended for use for human ingestion in response to Section 1417 of the federal Safe Drinking Water Act, as amended.
(3) Water conserving faucets, spouts and plumbing fixtures.
Water conserving faucets, spouts and plumbing fixtures which meet or exceed the water conservation requirements established in par. (b)
shall be installed as specified in par. (a)
All lavatory faucets, shower heads, urinals, urinal flushing devices, water closets and water closet flushing devices shall conform to par. (b)
All faucets installed on kitchen sinks of dwelling units and living units shall conform to par. (b) 4.
SPS 384.20(3)(b)1.1. `General.'
Flow control or flow restricting devices shall be installed on the water inlet side or shall be an integral part of the faucet, spout or fixture. A flow controlling or restricting aerator shall be considered to be an integral part of a faucet or spout.
The maximum discharge rate of lavatory faucets shall be 2.2 U.S. gallons per minute at a 60 psig flowing supply pressure.
Lavatory faucets that are of the metering type shall allow a maximum of 0.25 U.S. gallon per metering cycle at an 80 psig flowing supply pressure.
3. `Shower heads.'
The maximum discharge rate of shower heads shall be 2.5 U.S. gallons per minute at an 80 psig flowing supply pressure.
4. `Sink faucets.'
The maximum discharge rate of sink faucets shall be 2.2 U.S. gallons per minute at 80 psig flowing supply pressure.
Urinals shall function properly with a maximum of one U.S. gallon per flush at an 80 psig flowing supply pressure.
6. `Urinal flushing devices.'
The flushing cycle for urinal flushing devices shall discharge a maximum of one U.S. gallon per flush per fixture use at static test pressure of 20 psig and 80 psig.
7. `Water closets.'
Water closets shall function properly with a maximum of 1.6 U.S. gallons per flush over the range of static test pressure specified in Table 384.20.
8. `Water closet flushing devices.'
The flushing cycle for water closet flushing devices shall discharge a maximum of 1.6 U.S. gallons over the range of static test pressures specified in Table 384.20.
STATIC TEST PRESSURES FOR WATER CLOSETS AND WATER CLOSET FLUSHING DEVICES
- See PDF for table
The outlet passageway of a fixture shall be free from impairments and of sufficient size to insure proper discharge of the fixture contents under normal conditions.
The outlet connection of a fixture which directly connects to the drain system shall be an air and watertight joint.
SPS 384.20(4)(b)1.1. `Access for cleaning.'
Plumbing fixtures shall be so installed as to afford easy access for cleaning both the fixture and the area around it.
2. `Securing wall mounted fixtures.'
Wall mounted fixtures shall be rigidly supported by a hanger which is attached to structural members so that the load is not transmitted to the fixture drain connection or any other part of the plumbing system. The hanger for a wall mounted water closet shall conform to ASME A112.6.1M.
3. `Water supply protection.'
The water supply pipes and fittings within every plumbing fixture shall be so installed as to prevent backflow.
4. `Design of overflow.'
A fixture which is provided with an overflow outlet shall be designed and installed so that standing water in the fixture cannot rise in the overflow when the fixture's stopper is closed, and so that no water remains in the overflow when the fixture is empty.
5. `Connection of overflows.'
The overflow from any fixture shall discharge into the drain system on the inlet or fixture side of the trap.
6. `Overflows in flush tanks.'
Flush tanks shall be provided with overflows discharging to the fixture served and shall be of sufficient size to prevent flooding the tank at the maximum rate at which the tanks are supplied with water.
All plumbing fixtures other than water closets, clinic sinks, trap standard service sinks with flush rims, urinals, standpipes and waste sinks shall be provided with strainers, cross bars or pop-up stoppers which restrict the clear opening of the waste outlet.
8. `Flushometer valves.'
Flushometer valves shall be equipped with vacuum breakers which conform to ASSE 1001. Flushometer valves may not be used where the water pressure is insufficient to properly operate them. When the valve is operated, it shall complete the cycle of operation automatically, opening fully and closing positively under the water supply pressure. Each flushometer shall be provided with a means for regulating the flow through it.
The floor of all site-constructed shower stalls and shower rooms shall be protected with a safing material installed beneath the finished floor of the entire enclosure or room and upward along the sides to a minimum of 6 inches above the curb or maximum water level of the room or enclosure. The corners of the enclosure or room shall be safed to a height of 6 feet and at least 3 inches in each direction from the corners.
All floor drains or other similar fixtures shall be installed with a safing material extending a minimum of 12 inches from the fixture.
All installations directly over an unexcavated portion of a building are exempt from this subdivision.
SPS 384.20 Note
Chapters SPS 361
contain provisions for toilet rooms and sanitary facilities for public buildings and places of employment, including provisions concerning toilet facilities for people with disabilities, fixture compartments, number of fixtures for the different types of occupancies, and toilet room finishes.
SPS 384.20(5)(a)(a) Automatic clothes washers.
Residential type automatic clothes washers shall conform to ASSE 1007.
Bathtubs shall have waste outlets and overflows at least 1-1/2 inches in diameter. A closing device shall be provided on the waste outlet.
All whirlpool piping for bathtubs shall drain by gravity to the trap serving the bathtub.
All waterways of the whirlpool pump for a bathtub shall drain by gravity to the trap serving the bathtub.
Vitreous china bidets shall conform to the material requirements in ASME A112.19.2M.
A bidet may not be located closer than 15 inches from its center to any side wall, partition, vanity or other obstruction, nor closer than 30 inches center to center from a water closet.
Bidets with submerged inlet fittings shall be protected by vacuum breakers which conform to ASSE 1001 or CAN/CSA B64.1.1.
Chemical dispensing systems.
Chemical dispensing systems shall conform to ASSE 1055.
Drinking fountains and water coolers shall conform to ARI 1010 or ASME A112.19.2.
The water supply for drinking fountains shall be provided with an adjustable valve fitted with a loose key or an automatic self-closing valve permitting regulation of the rate of flow of water. The water supply issuing from the nozzle shall be of sufficient volume and height so that persons using the fountain need not come in direct contact with the nozzle or orifice.
A drinking fountain may not have a waste outlet less than 1-1/4 inches in diameter.
Floor drains shall be provided with removable strainers of sufficient strength to carry the anticipated loads.
The floor drain shall be so constructed that it can be cleaned, and the drain inlet shall be accessible at all times.
Floor drains shall be of a size to efficiently serve the intended purpose. The floor drain outlet shall not be less than 2 inches in diameter.
Residential type food waste grinders shall conform to ASSE 1008. Commercial type food waste grinders shall conform to ASSE 1009.
Food waste grinders shall be connected to a drain of sufficient size to serve the unit, but not less than 1 ½
inches in diameter.
All food waste grinders shall be provided with an adequate supply of cold water at a sufficient flow rate to insure proper functioning of the unit.
(i) Laundry trays.
Each compartment of a laundry tray shall be provided with a waste outlet not less than 1 ½
inches in diameter.
Cultured marble vanity tops with an integral lavatory shall conform to ANSI Z124.3.
Lavatories shall have waste outlets not less than 1¼
inches in diameter.
(k) POWTS design packages and POWTS components.
POWTS design packages and POWTS components shall function and perform in accordance with assertions submitted to and approved by the department under s. SPS 384.10
Prefabricated plastic showers and shower compartments shall conform to ANSI A124.1.2.