Wisconsin Legislature: SPS 382.41(5)(c)

2. A reduced pressure principle backflow preventer and a reduced pressure detector backflow preventer which serve a water-based fire protection system may have a test outlet located between the number 2 check valve and the number 2 listed indicating control valve.

3. A reduced pressure principle backflow preventer and a reduced pressure detector backflow preventer which are 2” or smaller in size and which serve a water-based fire protection system are not required to have a test cock on the number one listed indicating control valve.

(f) A hand-held shower may not be employed in backpressure situations of more than 5 feet of water column.

(g)

1. A double check backflow prevention assembly and a double check detector assembly backflow preventer may not be subjected to a backpressure greater than twice the rated working pressure of the device.

3. A double check backflow prevention assembly and a double check detector assembly backflow preventer which are 2” or smaller in size and which serve a water-based fire protection system are not required to have a test cock on the number one listed indicating control valve.

(h) A water supply fed trap seal primer valve shall be installed such that the bottom of the device or the critical level as marked on the device is at least 12” above:

1. The connection to the trap; and

2. The highest point downstream from the device where backpressure would be created.

(i) A vacuum breaker wall hydrant, freeze resistant automatic draining type or a freeze resistant sanitary yard hydrant, may not be employed in backpressure situations of more than 10 feet of water column.

(k) A pressure type vacuum breaker assembly shall be installed such that the bottom of the device or the critical level mark on the device is at least 12” above all of the following:

1m. The flood level rim of the receptor serving the water supply port.

2m. The highest point downstream from the device where backpressure would be created.

3m. The highest point of an injection or aspiration port.

(L) A laboratory faucet backflow preventer may not be employed in backpressure situations of more than 6 feet of water column.

(m) The cross connection control device to serve a hose bibb or hydrant that penetrates an exterior wall of a heated structure may not prevent a hose bibb or hydrant from being freeze resistant automatic draining as required under s. SPS 382.40 (8) (a).

(n) A spill resistant vacuum breaker shall be installed so that the bottom of the device or the critical level mark on the device is at least 12” above all of the following:

1. The flood level rim of the receptor serving the water supply port.

2. The highest point downstream from the device where back pressure would be created.

3. The highest point of an injection or aspiration port.

(o) A water-fed trap seal primer shall be provided with high hazard backflow protection compliant with this section and all the following:

1. Fixture trap or tailpiece trap seal primers shall consist of a 1 1/4 inch (32 mm) or larger tailpiece or trap assembly that is designed to connect to a supply tube that drains to the floor drain trap inlet.

2. Ballcock trap seal primer shall be used in conjunction with anti-siphon fill valves complying with ASSE 1002.

3. Flushometer tailpiece or trap seal primers shall only be used in conjunction with a flushometer complying with ASSE 1037 and shall be installed below the critical level of the vacuum breaker if a vacuum breaker is used.

(5) Installation.

(a) An air gap for cross connection control shall conform to ASME A112.1.2.

Note: See ch. SPS 382 Appendix for further explanatory material.

(b) Cross connection control methods, devices and assemblies shall be installed in accordance with the manufacturer’s written installation specifications and this chapter. The methods, devices and assemblies shall be accessible for inspection, testing, maintenance and replacement.

Note: See s. SPS 384.30 (5) (c).

(d)

1. Except as provided in subd. 1m., a cross connection control device or cross connection control assembly may not be located in uninhabitable spaces susceptible to flooding.

1m. A cross connection control device or cross connection control assembly that does not incorporate a vent port may be installed in an uninhabited location susceptible to flooding.

2. A cross connection control device which has one or more vent ports may not be located in a pit, vault or depression which is below the adjacent grade or floor level, even if the pit, vault or depression is provided with a drain at the bottom of the pit.

(e)

1. Vent ports of cross connection control devices shall be positioned:

a. Away from areas where toxic gases and fumes may accumulate;

b. Downward or protected to protect the ports from falling debris; and

c. So as to drain dry.

2. Cross connection control devices or assemblies shall be so located that any vent ports are provided with an air gap so as to comply with s. SPS 382.33 or ASME A112.1.3.

a. If a pressure vacuum breaker, reduced pressure principle backflow preventer, or a reduced pressure detector backflow preventer, is located within a building, a drain or receptor shall be provided to receive the discharge from the vent ports of the device. If a floor drain is to receive the discharge from the vent ports of a pressure vacuum breaker, reduced pressure principle backflow preventer or a reduced pressure detector backflow preventer, the flow or pathway of the discharge may not create a nuisance.

b. Where drain piping is provided for the discharge from a vent port, an air gap in accordance with par. (a) shall be provided between the vent port and the drain piping.

c. Where a receptor is provided for the discharge from a vent port, an air gap in accordance with par. (a) shall be provided between the vent port and the receptor.

(f) The installation of a reduced pressure principle backflow preventer, a reduced pressure principle fire protection backflow preventer, a reduced pressure detector fire protection backflow prevention assembly, a double check backflow prevention assembly, a double check fire protection backflow prevention assembly, a double check detector fire protection backflow prevention assembly, a pressure vacuum breaker assembly, and a spill resistant vacuum beaker shall conform to all of the following limitations:

1. The minimum distance between the floor, surface or platform which is to provide access and the lowest point of the assembly may not be less than 12”.

2. The maximum distance between the floor, surface or platform which is to provide access and the lowest point of the assembly may not be more than 7 feet.

3. The minimum distance between a ceiling or other obstruction and the highest point of the assembly may not be less than 18”.

4. The minimum distance between a wall or other obstruction and the back and ends of the assembly may not be less than 4”.

5. The minimum distance between a wall or other obstruction and the front of the assembly may not be less than 24”.

Note: See ch. SPS 382 Appendix for further explanatory material.

(g) The discharge outlet of local waste piping serving a cross connection control device shall be visible and not be located within a concealed space.

(h) No control valve may be placed downstream from an atmospheric-type vacuum breaker or a laboratory faucet backflow preventer.

(i) A barometric loop to provide cross connection control for backsiphonage shall be formed by creating a loop in the potable water supply piping upstream to the source of cross connection.

1. The loop shall extend at least 35 feet above:

a. The highest point downstream from the loop where backpressure would be created; and

b. The point of discharge.

2. No outlets for potable water use shall be installed downstream of the peak of the loop.

(j) Vacuum breaker tees shall be assembled such that:

1. The bottom of the horizontal portion of the tee is installed at least one inch above the flood level rim of the receptor;

2. The inside diameter of the tee is equal to or greater than the inside diameter of the drain piping from the water treatment device;

3. The tee is installed in such a position that the discharge will not create a nuisance;

4. The piping upstream of the tee is of a type suitable for water distribution in accordance with s. SPS 384.30 (4) (e).

5. The vent portion of the tee is equal to or greater than the inside diameter of the drain piping from the water treatment device; and

6. The vent port of the tee is:

a. Positioned away from areas where toxic gases and fumes may accumulate; and

b. Constructed to protect the port from falling debris.

(k) A chemical dispensing system shall be connected to the water distribution system in either of the following manners:

1. The fixture supply shall be individually connected to the water distribution system.

2. The fixture supply shall be installed with a pressure bleeding device. The pressure bleeding device shall create a visually free flow of water through the atmosphere from the faucet connection into the fixture drain.

History: 1-2-56; r. (2) through (7), Register, October, 1971, No. 190, eff. 11-1-71; r. and recr. Register, November, 1972, No. 203, eff. 12-1-72; renum. from H 62.14, Register, July, 1983, No. 331, eff. 8-1-83; renum. from ILHR 82.14 and am. (1) (h) 17., r. (2), Register, February, 1985, No. 350, eff. 3-1-85; r. and recr. Register, February, 1994, No. 458, eff. 3-1-94; am. (2) (a), Tables 82.41-1, 2, (4) (c), (e) to (i), (k) to (m), (5) (e) 3. a., (i), cr. (4) (n), r. and recr. (5) (b), (f), r. (5) (h), Register, February, 1997, No. 494, eff. 3-1-97; correction in (4) (n) made under s. 13.93 (2m) (b) 1., Stats., Register, February, 2000, No. 530; am. (3) (a) 2., (4) (k) 1. and (5) (a), r. and recr. (4) (b) and (n), and Tables 82.41-1 and 82.41-2, cr. (4) (k) 1. c. and (5) (L), Register, December, 2000, No. 540, eff. 1-1-01; CR 02-002: am. (3) (intro.), (5) (a), Tables 82.41-1 and 2, renum. (5) (i) to (L) to be (5) (h) to (k) Register April 2003 No. 568, eff. 5-1-03; CR 04-035: cr. (3) (b) 4. d., am. Tables 82.41-1 and -2, 82.41 (2), (3) (a) 1. and (b) 7. Register November 2004 No. 587, eff. 12-1-04; CR 08-055: cr. (3) (b) 4. e., am. (4) (c) 1. a., (f), (i), (n), (5) (a), (e) 2., (f) (intro.), Tables 82.41-1 and 82.41-2 Register February 2009 No. 638, eff. 3-1-09; corrections in (6) made under s. 13.92 (4) (b) 1. and 7., Stats., Register February 2009 No. 638; CR 09-050: r. (6) Register December 2009 No. 648, eff. 1-1-10; CR 10-064: am. (1), (5) (e) 2., Table 82.41-2 Register December 2010 No. 660, eff. 1-1-11; correction in (2) (a), (b), (3) (a) 1., (b) 7., (4) (m), (5) (e) 2., (j) 4., Table 382.41-1, Table 382.41-2 made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 23-006: am. (2) (a), (3) (b) 4. e., 5. (intro.), a., r. (3) (b) 5. b., cr. (3) (b) 5. bm., am. (3) (b) 5. c., r. and recr. (3) (b) 6. b., renum. (3) (d) to (3) (d) 1. and am., cr. (3) (d) 2., r. and recr. Table 382.41-1, r. Table 382.41-2, am. (4) (b) 1. (intro.), 2. (intro.), r. (4) (g) 2., (k) 2., cr. (4) (o), am. (5) (d) 1., cr. (5) (d) 1m., am. (5) (e) 3. a., (f) (intro.), (h) Register September 2023 No. 813, eff. 10-1-23; renum. (4) (k) 1. to (4) (k) under s. 13.92 (4) (b) 1., Stats., Register September 2023 No. 813; correction in (4) (b) 1. made under s. 35.17, Stats., Register September 2023 No. 813.

Subchapter V — Special Plumbing Installations

SPS 382.50 Health care and related facilities.

(1) General. The provisions of this section shall set forth the requirements for the design, installation and maintenance of devices, fixtures and equipment which are installed in health care and related facilities.

(2) Fixtures and equipment.

(a) Special fixtures and equipment.

1. ‘Requirements for ice manufacture and storage.’ Machines for manufacturing ice or any device for handling or storage of ice shall be located in an area not subject to contamination.

2. ‘Sterilizers and washer sanitizers.’

a. Sterilizers and washer sanitizers shall discharge by means of indirect waste.

b. The indirect waste piping shall discharge by means of air-gap.

3. ‘Aspirators.’ Aspirators which require the use of water shall be provided with approved cross connection control.

(b) Spouts and actions. Except in psychiatric-care facilities in areas where patient safety is at risk with standard gooseneck spouts and actions, the selection of spouts and actions on plumbing fixtures shall comply with this section and Table 382.50-1.

1. ‘Spouts.’

a. Lavatories and sinks accessible to patients shall have a fixed water supply spout mounted so that its discharge point is a minimum distance of 5 inches above the flood level rim of the fixture.

b. Spouts shall have laminar flow in facilities listed in par. (3) (b).

2. ‘Actions.’ All fixtures used by medical and nursing staff, patients, residents, and food handlers shall be equipped with valves that can be operated without the use of hands and shall comply with all of the following:

a. Where wrist blade handles are used for this purpose, the handles may not exceed 4 1/2 inches in length, except handles on scrub sinks and clinical sinks shall be no less than 6 inches long.

b. Single lever faucet handles may be used in lieu of wrist blades.

c. In lavatories with self-closing faucets accessible to patients, the flow of the hot water shall be calculated to evacuate the water distribution piping from the faucet to the recirculated hot water supply.