SPS 382.22(2)(a)(a) Except as specified in par.
(b), any existing plumbing system may remain and maintenance continue if the maintenance is in accordance with the original system design and any of the following:
SPS 382.22(2)(a)1.
1. The plumbing system was installed in accordance with the code in effect at the time of installation.
SPS 382.22(2)(b)
(b) When a hazard to life, health or property exists or is created by an existing system, that system shall be repaired or replaced.
SPS 382.22 Note
Note: A cross connection is considered a health hazard by the department.
SPS 382.22(2)(c)
(c) Existing sewers and water services may only be connected to new buildings when determined by examination and test to conform to the requirements of this chapter.
SPS 382.22(3)(a)(a) When a fixture, appliance or section of pipe is replaced, the replacement fixture, appliance or pipe shall conform to the provisions of this chapter.
SPS 382.22(3)(b)
(b) Where the existing drain or vent piping does not conform to the current provisions of this chapter, the department may require the new fixtures to be provided with deep seal traps.
SPS 382.22(4)(a)1.1. Except as provided in par.
(b) plumbing materials, fixtures or devices removed and found to be in good condition may be reused if such reuse is approved by the department or a local plumbing inspector.
SPS 382.22(4)(a)2.
2. The owner of the building or facility in which the reused materials are to be installed shall provide written consent.
SPS 382.22(4)(b)
(b) Water supply piping materials may only be reused when the intended use involves an equal or higher degree of hazard than the previous use as specified in Table 382.70–1.
SPS 382.22(5)
(5)
Repairs. All repairs to fixtures, devices or piping shall be completed in conformance with the provisions of this chapter, except repair clamps or bands may be used for emergency situations.
SPS 382.22(6)
(6)
Demolition of structures. When a structure is demolished or removed, all sanitary sewer, storm sewer and water supply connections shall be sealed and plugged in a safe manner.
SPS 382.22(7)
(7)
Dead ends. If a dead end is created in the removal of any part of a drain system, all openings in the drain system shall be properly sealed in accordance with s.
SPS 384.40.
SPS 382.22(8)
(8)
Testing of cross connection control assemblies. SPS 382.22(8)(a)
(a) The performance testing requirements of this subsection apply to all cross connection control assemblies regardless of date of installation.
SPS 382.22 Note
Note: For further clarification see Table 382.22–1.
SPS 382.22(8)(b)1.1. A performance test shall be conducted for the assemblies listed in Table 382.22–1 at all of the following intervals:
SPS 382.22(8)(b)2.
2. The performance test shall be conducted using the appropriate test standard for the assembly as specified in Table 382.22–1.
SPS 382.22(8)(b)3.
3. A cross connection assembly performance test shall be conducted by an individual registered by the department in accordance with s.
SPS 305.99.
SPS 382.22(8)(b)4.a.a. The results of the cross connection control assembly performance test shall be submitted as specified in Table 382.22–1 in a format prescribed by the department accompanied by a filing fee as specified in s.
SPS 302.645 (2).
SPS 382.22(8)(b)4.b.
b. As specified in Table 382.22–1, the results of the cross connection assembly performance test shall be submitted to the department and purveyor within 60 days of completion of the test.
SPS 382.22(8)(b)5.
5. The results of performance tests for the assemblies listed in Table 382.22–1 shall be made available upon request to the department, its agent or the local government unit.
Table 382.22-1
Testing and Submitting Requirements for Cross Connection Control Assemblies
- See PDF for table 
SPS 382.22 History
History: CR 08-055: cr. (1) to (8) and Table 82.22-1, (9) renum. from Comm 82.21 (3)
Register February 2009 No. 638, eff. 3-1-09; correction to numbering in (3) made under s.
13.92 (4) (b) 1., Stats.,
Register February 2009 No. 638;
CR 09-050: am. (8) (b) 4. a. and Table 82.22-1, r. (9)
Register December 2009 No. 648, eff. 1-1-10; correction in (4) (b), (8) (b) 1. (intro.), 2., 3., 4. a., b., 5. made under s.
13.92 (4) (b) 7., Stats.,
Register December 2011 No. 672;
CR 23-006: am. (7), Table 382.22-1 Register September 2023 No. 813, eff. 10-1-23. SPS 382.30(1)(1)
Scope. The provisions of this section set forth the requirements for the design and installation of sanitary drain systems, including building drains and building sewers.
SPS 382.30 Note
Note: The provisions for storm and clear water drain systems are specified in s.
SPS 382.36.
SPS 382.30(2)
(2)
Materials. All sanitary drain systems shall be constructed of approved materials in accordance with ch.
SPS 384.
SPS 382.30(3)(a)1.1. `Fixture.' The load factor on drain piping shall be computed in terms of drainage fixture unit values specified in Table 382.30–1 for the corresponding listed fixture.
SPS 382.30(3)(a)2.
2. `Devices.' Drainage fixture unit values for intermittent flow devices not listed in Table 382.30–1 shall be computed on the basis of one fixture unit equalling one gallon per minute of flow.
SPS 382.30 Note
Note: Equipment with a timed discharge cycle(s) of 2 minutes or less may be considered as an intermittent flow device.
SPS 382.30(3)(b)
(b) Continuous flow devices. Drainage fixtures unit values for continuous flow devices such as pumps, ejectors, air conditioning equipment or similar devices that discharge continuously shall be computed on the basis of 2 fixture units for each one gallon per minute of flow.
SPS 382.30(4)(a)1.1. The total drainage load in any portion of drain piping may not exceed the limits specified in Tables 382.30-2 and 382.30-3, but may be less than the limits specified in Tables 382.30-2 and 382.30-3 based on an approved alternate standard consistent with s.
SPS 381.20 (2) or an analysis provided by a Wisconsin registered architect, registered professional engineer, or permitted designer of engineering systems – plumbing.
SPS 382.30(4)(a)2.
2. The drainage fixture unit values assigned to a receptor may be less than the limits specified in Tables 382.30-2 and 382.30-3 based on an approved alternate standard consistent with s.
SPS 381.20 (2) or an analysis provided by a Wisconsin registered architect, registered professional engineer, or permitted designer of engineering systems – plumbing.
SPS 382.30 Note
Note: See s.
SPS 382.31 (17) for sizing requirements of combination drain and vent systems.
SPS 382.30 Note
Note: See ch.
SPS 382 Appendix for further explanatory material.
SPS 382.30(4)(b)1.1. `Gravity flow sewers.' The minimum size of a gravity flow sanitary building sewer shall be 4
‶ in diameter. A municipality or sanitary district by ordinance may require that portion of the building sewer between the lot line and the public sewer to be larger than 4
" in diameter.
SPS 382.30(4)(b)2.a.a. Sewers pressurized through the use of sewage ejectors, sewage pumps or sewage grinder pumps shall be sized to maintain a minimum flow velocity of 2 feet per second and shall be in accordance with the ejector or pump manufacturer's recommendations.
SPS 382.30(4)(b)2.b.
b. Pressurized building sewers shall be sized not less than 2" in diameter for sewage ejectors and sewage pumps, and 1
¼
" in diameter for all sewage grinder pumps.
SPS 382.30(4)(c)1.1. Except as provided in subd.
3., the minimum size of a gravity flow private interceptor main sewer shall be 4" in diameter.
SPS 382.30(4)(c)2.
2. Except as provided in subd.
3., the minimum size of pressurized private interceptor main sewer shall be such so as to maintain a minimum flow velocity of 2 feet per second.
SPS 382.30(4)(c)3.
3. A municipality or a sanitary district may by ordinance, require the minimum size of a private interceptor main sewer to be larger than 4" in diameter.
SPS 382.30(4)(c)4.
4. Private interceptor main sewers 6" or less in diameter may not exceed the drainage fixture limits in Table 382.30-3.
SPS 382.30(4)(c)5.
5. Private interceptor main sewers 8
" or larger in diameter shall conform with the design criteria specified in s.
NR 110.13.
SPS 382.30 Note
Note: See ch.
SPS 382 Appendix A-382.30 (4) for further explanatory material.
SPS 382.30 Note
Note: For further explanatory material see ch.
SPS 382 Appendix A-382.30 (4).
SPS 382.30(5)
(5)
Pitch of horizontal drain piping. All horizontal drain piping 4" or larger in diameter shall be installed at a pitch which produces a computed velocity of at least 2 feet per second when flowing half full.
SPS 382.30(5)(a)1.1. The minimum pitch of horizontal branch drains 2" or less in diameter shall be
1/
4"
per foot.
SPS 382.30(5)(a)2.
2. The minimum pitch of horizontal branch drains larger than 2
‶ in diameter shall be
1/
8"
per foot.
SPS 382.30(5)(b)1.1. The minimum pitch of building drains shall be in accordance with Table 382.30-3.
SPS 382.30(5)(b)2.a.a. The minimum pitch of building sewers 10" or less in diameter shall be in accordance with Table 382.30-3.
SPS 382.30(5)(b)2.b.
b. The minimum pitch of building sewers 12" or larger in diameter shall conform with the minimum pitch specified for municipal sewers in s.
NR 110.13.
SPS 382.30(5)(c)1.1. The minimum pitch of private interceptor main sewers 6" or less in diameter shall be in accordance with Table 382.30-3.
SPS 382.30(5)(c)2.
2. The minimum pitch of private interceptor main sewers 8" or larger in diameter shall conform with the minimum pitch specified for municipal sewers in s.
NR 110.13.
SPS 382.30 Note
Note: See ch.
SPS 382 Appendix for further explanatory material.
SPS 382.30(6)
(6)
Offsets in vertical drains. Offsets in vertical drain piping shall be in accordance with this subsection.
SPS 382.30(6)(a)1.1. An offset in a vertical drain, with a change in direction of 45
° or less from the vertical, shall be sized as a vertical drain piping in accordance with sub.
(4).
SPS 382.30(6)(a)2.
2. Except as provided in par.
(c), where a horizontal branch connects to a drain stack within 2 feet above or below an offset with a change of direction of 30
° to 45
° from the vertical and the offset is located 5 or more branch intervals below the top of the stack, the offset shall be vented in accordance with s.
SPS 382.31 (5) (a).
SPS 382.30(6)(b)
(b) Offsets of more than 45°. Except as provided in par.
(c), a drain stack with an offset of more than 45
° from the vertical shall be installed in accordance with subds.
1. to
5. SPS 382.30(6)(b)1.
1. That portion of the drain stack above the highest offset shall be sized as for vertical drain piping in accordance with sub.
(4).
SPS 382.30(6)(b)2.
2. That portion of the offset between and including the offset fittings shall be sized as building drain piping in accordance with sub.
(4).
SPS 382.30(6)(b)3.
3. That portion of stack below the offset shall be not less than the size of the offset.
SPS 382.30(6)(b)4.
4. Where an offset of more than 45
o is located more than four branch intervals below the top of the drain stack, a horizontal branch may not connect within the offset or within 2 feet above or below such offset.
