ARTICLE 20:54
\r\n\r\n\r\nSTATE PLUMBING\r\nCODE
\r\n\r\n\r\n\r\nChapter
\r\n\r\n20:54:01 Definitions,\r\nRepealed.
\r\n\r\n20:54:02 General\r\nrules.
\r\n\r\n20:54:03 Materials,\r\nRepealed.
\r\n\r\n20:54:04 Joints\r\nand connections, Repealed.
\r\n\r\n20:54:05 Traps\r\nand cleanouts, Repealed.
\r\n\r\n20:54:06 Interceptors,\r\nRepealed.
\r\n\r\n20:54:07 Plumbing\r\nfixtures, Repealed.
\r\n\r\n20:54:08 Hangers\r\nand supports, Repealed.
\r\n\r\n20:54:09 Indirect\r\nwaste piping, Repealed.
\r\n\r\n20:54:10 Water\r\nsupply and distribution, Repealed.
\r\n\r\n20:54:11 Sanitary\r\ndrainage systems, Repealed.
\r\n\r\n20:54:12 Vents\r\nand venting, Repealed.
\r\n\r\n20:54:13 Storm\r\ndrains, Repealed.
\r\n\r\n20:54:14 Medical\r\ncare facilities, Repealed.
\r\n\r\n20:54:15 Tests\r\nand maintenance, Repealed.
\r\n\r\n20:54:16 Potable\r\nwater supply systems, Repealed.
\r\n\r\n20:54:17 Mobile\r\nhome park plumbing, Repealed.
\r\n\r\n20:54:18 Travel\r\ntrailer parks, Repealed.
\r\n\r\n20:54:19 Water\r\nconditioning definitions.
\r\n\r\n20:54:20 Water\r\nconditioning in general.
\r\n\r\n20:54:21 Water\r\nconditioning materials.
\r\n\r\n20:54:22 Water\r\nconditioning joints.
\r\n\r\n20:54:23 Water\r\nconditioning hangers.
\r\n\r\n20:54:24 Water\r\nconditioning indirect wastes.
\r\n\r\n20:54:25 Water\r\nconditioning -- Water supply.
\r\n\r\n20:54:26 Water\r\nconditioning equipment.
\r\n\r\n20:54:27 Water\r\nconditioning inspection.
\r\n\r\n20:54:28 Portable\r\nwater conditioning units.
\r\n\r\n\r\n\r\nCHAPTER 20:54:01
\r\n\r\n\r\nDEFINITIONS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:02
\r\n\r\n\r\nGENERAL RULES
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:02:01 Conformance with\r\nuniform code -- Exceptions.
\r\n\r\n20:54:02:02 to\r\n20:54:02:37 Repealed.
\r\n\r\n\r\n\r\n20:54:02:01. Conformance with uniform code -- Exceptions. All plumbing materials and plumbing systems or parts of plumbing systems installed must meet or exceed the minimum provisions of the Uniform Plumbing Code, 2024 edition, including Appendices A, B, C, D, E, I, K, L, M, N, O, Q, and R, with the following exceptions:
(1) Sections 103.0 to 107.2, inclusive; Table 104.5 of Chapter 1; 312.12.3; 313.7; 317.1(5); 319.0 and 319.1; 422.5; 609.11.1; 609.12 to 609.12.2, inclusive; 722.2 to 723.1, inclusive; 802.0 and 802.1; 811.5; 904.2; 1101.5 to 1101.11, inclusive; 1101.15 to 1101.15.3, inclusive; Chapter 5; Chapters 12 to 14, inclusive; Sections E 401.0 to E 406.4, inclusive, of Appendix E; Appendices F to H, inclusive; Appendix J; Appendix P; and Appendix S;
(2) The word \"or\" is added before \"renovations\" in the first, second, and third sentences of section 102.4. The words \"or repairs\" are removed from the first, second, and third sentences of section 102.4;
(3) The sentence \"Cap close to mail and abandon the rest.\" is added as the last sentence of section 309.6;
(4) The words \"Voids around piping passing through concrete floors on the ground shall be sealed.\" are removed from section 312.1;
(5) The word \"water,\" is removed from the first sentence of section 312.6 and the following words are added to section 312.6: \"No water piping shall be installed in an exterior wall or unheated attic. An exterior wall includes any wall between a heated space and an unheated space. Water service piping must be installed with a minimum earth cover of 72 inches. Building sewers must be installed with a minimum earth cover of 42 inches. Building sewers on septic systems may be installed at any depth that will accommodate the burial depth of the septic tank. If the building sewer is installed at a depth less than 30 inches, the pipe shall be protected from freezing with a minimum of 3 inches of foam insulation above and two feet of overhang on each side of the pipe.\";
(6) The words \"and Chapter 14, \"Firestop Protection\"\" are removed from section 312.7;
(7) The words \"Fuel gas piping shall be protected in accordance with Section 1210.4.3\" are removed from section 312.9;
(8) The words \"or wrapped\" are added after the word \"bored\" in section 312.10;
(9) The words \"metal\" and \"securely fastened to the adjoining structure\" are removed from section 312.12.2;
(10) The words \"and in gas piping as permitted by Section 1212.6\" are removed from section 315.1;
(11) The sentence \"Closet bends or stubs shall be cut off so as to present a smooth surface even with the top of the closet ring before rough inspection is called\" is changed to \"The top of the closet flange shall be installed above the finished floor not to exceed three-eighths of an inch thick\" in section 402.6.1;
(12) The words \"except for guest rooms in hotels, motels, dormitories, boarding houses, and similar occupancies, which may be round.\" is added at the end of the second sentence in section 411.1;
(13) The words \"except closed front seats are permitted in hotels, motels, guest rooms, dormitories, boarding houses, and similar occupancies\" are added to the end of the second sentence in section 411.3;
(14) The words \"(5) In all mechanical rooms, and floors have a one-fourth inch slope in a one-foot radius around the drain.\" are added to section 418.3;
(15) The words \"(6) In the lowest level.\" are added to section 418.3;
(16) The word \"shall\" is changed to \"may\" in section 407.4 and footnote 6 of Table 422.1;
(17) The words \"Unless separate facilities are required by state law,\" are added to the beginning and \"Separate\" is changed to \"separate\" of section 422.2(4);
(18) The sentence \"A dual check backflow preventer that conforms to ASSE 1024 must be installed on the building side immediately downstream of the water meter where the water service enters the building.\" are added to section 602.3;
(19) The sentences \"Copies of testable backflow assembly test reports for the initial installation shall be sent to the water supplier. Copies of annual testable backflow preventer test reports must be sent to the water supplier. A testable assembly has properly located, resiliently seated test cocks and tightly closing, resiliently seated shut off valves at each end of the assembly.\" are added to section 603.4.2;
(20) The sentence \"Water-to-water heat exchangers that return the water back to the public system of waterworks may not be allowed on a public water system unless approved by the Authority Having Jurisdiction.\" is added to the end of section 603.5.4;
(21) \"Section 505.4.1\" is changed to \"Sections C 302.0 to C 302.3, inclusive, of Appendix C\" in section 603.5.4;
(22) The words \"unless they are installed above the known groundwater table, at least ten feet away from any sewer line or any other source of contamination, and only on seasonal-use facilities\" are added to the end of section 603.5.17;
(23) The words \"or underground outside of structures\" are removed from section 604.3;
(24) The sentence \"This does not apply to electric water heaters.\" is added to the end of section 604.13;
(25) The words \"primer purple in color\" are changed to \"approved primer\" in section 605.12.2;
(26) The word \"discharge\" is changed to \"inlet\" in the first sentence of section 606.2;
(27) The sentences \"Individual shutoff valves shall be installed on each plumbing fixture and each exterior hose bib, except in single family dwellings. Individual valves are not required on tub valves, shower valves, and exterior hose bibs.\" are added to the end of section 606.5;
(28) The word \"provided\" is changed to \"approved\" in section 608.5;
(29) The words \"or outside of the building with the end of the pipe not exceeding 2 feet (610 mm) and not less than 6 inches (152 mm) above the ground and pointing downwards\" are removed from section 608.5(3);
(30) The word \"prohibited\" is changed to \"permitted\" in section 608.5(7);
(31) The sentences \"Building supply yard piping shall be not less than 12 inches (305 mm) below the average local frost depth. The cover shall be not less than 12 inches (305 mm) below finish grade.\" are removed from section 609.1;
(32) The sentences \"Potable water service piping may not be located in, under, or above cesspools, septic tanks, septic tank drainage fields, or drainage pits. A separation of twenty-five feet must be maintained from these systems, except for livestock confinement facilities, which may be three feet\" are added to section 609.2(2);
(33) The word \"shall\" is replaced with \"may\" in section 609.5;
(34) The sentence \"Dwellings units are exempt from this requirement unless an expansion tank is installed.\" is added to the end of section 609.11;
(35) The sentences \"The minimum size water service allowed is one inch, except to travel trailer or mobile home sites, which must be at least three-fourths of an inch. Exception: remodeling without changes to existing foundation.\" are added to the end of section 610.1;
(36) The sentence \"Plastic pipe and fittings installed underground outside of buildings may be SDR 35 ASTM 3034 or heavier.\" is added to the end of section 701.2(2) and the words \"and Chapter 14 'Firestop Protection'\" are removed from section 701.2(2);
(37) The sentence \"(7) CPVC Schedule 80 or 40 pipe and fittings may be used in lieu of cast-iron in underground installations for high temperature discharge applications.\" is added to section 701.2 and the following are added to Table 701.2 and Table 1701.1:
TABLE 701.2
MATERIALS FOR DRAIN, WASTE, VENT PIPE AND FITTINGS
MATERIAL | UNDERGROUND DRAIN, WASTE, VENT PIPE AND FITTINGS | ABOVEGROUND DRAIN, WASTE, VENT PIPE AND FITTINGS | BUILDING SEWER PIPE AND FITTINGS | REFERENCED STANDARD(S) PIPE | REFERENCED STANDARD(S) FITTINGS |
CPVC Schedule 80 or 40 |
X |
X |
| ASTM F441/F441M, CSA B181.2 | ASTM F439, CSA B181.2 |
(Portions of table not shown remain unchanged)
TABLE 1701.1
REFERENCED STANDARDS
STANDARD NUMBER |
STANDARD TITLE |
APPLICATION | REFERENCED SECTION |
CSA B181.2-2024 | Polyvinylchloride (PVC) and chlorinated polyvinylchloride (CPVC) drain, waste, and vent pipe and pipe fittings |
Piping, Fittings |
|
(38) The words \"tubular PVC or tubular ABS\" are added after \"(0.8 mm)\" in section 701.4;
(39) The sentence \"Not to exceed one-third of the total permitted length of a vent shall be permitted to be installed in a horizontal position.\" is removed from Note 6 under Table 703.2;
(40) The words \"except commercial dishwashing machines must be provided with indirect wastes\" are added to the end of the first sentence to section 704.3;
(41) The words \"primer purple in color\" are changed to \"approved primer\" in section 705.6.2;
(42) The sentence \"Exception: one-quarter bends may be used on individual fixture drains for horizontal to vertical, horizontal to horizontal, and vertical to horizontal changes in direction.\" is added to the end of section 706.1;
(43) The sentence \"(5) Where the piping is concealed, a fixture trap or a fixture with integral trap, readily removable without disturbing concealed roughing work, is accepted as a cleanout equivalent.\" is added to the exceptions in section 707.4;
(44) The words \"and gate valve\" are removed from section 710.3(2);
(45) Section 712.1 is revised as follows:
(a) The words \"except plastic pipe shall not be tested with air\" are removed:
(b) The sentence \"After the plumbling fixtures have been set and their traps filled with water, they shall be submitted to a final test\" is removed;
(c) The following sentences are added at the end: \"Where the Administrative Authority, due to practical difficulties or hardships, finds that a water or air test cannot be performed, a smoke or peppermint test must be substituted in lieu thereof. A smoke test is made by introducing into the entire system a pungent, thick smoke produced by one or more smoke machines. When the smoke appears at stack openings on the roof, the stack openings must be closed, with a pressure equivalent to a one-inch water column developed and maintained during the inspection. A peppermint test is conducted by the introduction of two ounces of oil of peppermint into the roof terminal of every line or stack to be tested. The oil of peppermint is immediately followed by ten quarts of hot water, whereupon all roof vent terminals are sealed. The detection of the odor of peppermint at any trap or other point on the system is a positive test result revealing leakage. Anyone whose person or clothes have come in contact with oil of peppermint must be excluded from the test area.\";
(46) \"5 feet (1524 mm)\" is changed to \"fifteen feet\" in section 801.4;
(47) The following words are added to section 801.7: \"Drip pans must be installed under storage-type water heaters to prevent tank leakage from causing property damage, except that drip pans are not required in:
1. The lowest level of buildings, provided that the floor is concrete or other material that is not damaged or deteriorated by water leakage from the tank;
2. Crawl spaces;
3. Spaces having floor drainage that collects leakage from the tank; and
4. Locations where tank leakage does not damage the building or its contents.
Drip pans must be watertight and constructed of corrosive-resistant materials. Metallic pans must be twenty-four gauge minimum. Non-metallic pans must be one-sixteenth of an inch minimum thickness. Pans must be not less than one and one-half inches deep and must be of sufficient size to hold the heater without interfering with drain valves, burners, controls, and any required access. High impact plastic pans are permitted under gas-fired water heaters where the heater is listed for zero clearance for combustible floors and the application is recommended by the pan manufacturer. Drip pans must have drain outlets not less than one inch in size, with indirect drain pipes extending to an approved point of discharge.\";
(48) In section 807.3, the sentences \"No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher airgap fitting on the discharge side of the dishwashing machine. Listed dishwasher air gap fittings shall be installed with the flood level (FL) marking at or above the flood level of the sink or drainboard, whichever is higher.\" are changed to \"The discharge from a residential kitchen sink and dishwasher may discharge through a single one and one-half inch trap. The discharge line from the dishwasher must be at least one-half inch nominal size and either looped up and securely fastened to the underside of the counter or connected to a deck-mounted dishwasher air gap fitting. The discharge must connect to a wye fitting between the sink waste outlet and the trap inlet or to the disposal.\";
(49) The sentence \"ABS and PVC DWV piping installations shall be in accordance with Chapter 14 'Firestop Protection.' \"Except for\" is removed from section 903.1(2);
(50) In section 906.7, the words \"Where frost or snow closure is likely to occur in locations having minimum design temperature below 0◦F (-17.8◦C), vent terminals shall be a minimum of three inches (76 mm) in diameter but in no event smaller than the required vent pipe. The change in diameter shall be made inside the building not less than one foot (305 mm) below the roof in an insulated space and terminate not less than 10 inches (254 mm) above the roof, or in accordance with the Authority Having Jurisdiction\" are changed to \"Each vent extension through a roof must be at least three inches in diameter, except kitchen sink vents in single-family dwellings, which must be at least two inches in diameter. The change in diameter must be made inside the building at least one foot below the roof with an approved fitting.\";
(51) The word \"shall\" is replaced with \"may\" and the words \"or upstream\" are added after the word \"downstream\" in section 908.2.4;
(52) The following words are added as an additional paragraph to the end of section 909.1: \"Alternate island sink installations require a minimum of a three-inch diameter drain, undiminished in size, which rises up through the sink cabinet and is capped off as high as possible. The vent may not connect further than fifteen feet from the vertical section of the drain and must be a minimum of one and one-half inch in diameter. A three by three by one and one-half inch sanitary tee is required for connection to the trap.\";
(53) The sentences \"Exception: In single family dwellings the maximum length of a floor drain that is connected to a uniformly sized building drain vented on both the upstream and downstream sides of the connection to the floor drain is fifteen feet. The minimum trap seal is four inches.\" are added to the end of sections 418.3 and 910.1;
(54) The words \"17 B&S Gauge\" are changed to \"20 B&S Gauge\" and the words \"(0.045 inch) (1.143 mm)\" are deleted from section 1003.1;
(55) The sentence \"Slip joint extensions with forty-five degree slip joint offsets are allowed.\" is added to the end of section 1003.2;
(56) The sentence \"The trap shall be the same size as the trap arm to which it is connected.\" is removed from section 1003.3;
(57) The sentence \"Floor drains in garages serving dwelling units for parking purposes that are connected to a building sanitary sewer shall have a means of collecting sediment and shall be provided with a water trap seal.\" is added to the end of section 1016.3; and
(58) The sentence \"ABS and PVC DWV piping installations shall be installed in accordance with applicable standards referenced in Chapter 17 and Chapter 14 \"Firestop Protection.\"\" is removed from section 1101.4.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 14 SDR 29, effective September 3, 1987; 15 SDR 136, effective March 15, 1989; 16 SDR 88, effective November 12, 1989; 17 SDR 75, effective December 3, 1990; 19 SDR 36, effective September 17, 1992; 20 SDR 29, effective September 1, 1993; 21 SDR 40, effective September 4, 1994; 23 SDR 83, effective November 28, 1996; 24 SDR 19, effective August 21, 1997; 26 SDR 33, effective September 12, 1999; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 31 SDR 35, effective September 23, 2004; 35 SDR 67, effective October 1, 2008; 37 SDR 48, effective September 21, 2010; 38 SDR 40, effective September 20, 2011; 41 SDR 219, effective July 2, 2015; 43 SDR 31, effective September 12, 2016; 45 SDR 91, effective January 9, 2019; 46 SDR 29, effective September 5, 2019; 52 SDR 42, effective October 28, 2025; 52 SDR 106, effective May 25, 2026.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:02:02 to 20:54:02:19. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:02:20. Exclusion\r\nof materials detrimental to the sewerage system.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; repealed, 4 SDR 10, effective August 28,\r\n1977.
\r\n\r\n\r\n20:54:02:21. Industrial\r\nwastes.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; repealed, 4 SDR 10, effective August 28,\r\n1977.
\r\n\r\n\r\n20:54:02:22 to 20:54:02:25. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:02:26. Freezing.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16, §\r\n1; 4 SDR 10, effective August 28, 1977; 7 SDR 56, effective December 16, 1980; 12 SDR\r\n91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; repealed, 30 SDR 99, effective December 22, 2003.
\r\n\r\n\r\n20:54:02:27 to 20:54:02:33. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:02:34. Toilet\r\nfacilities for workmen.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; repealed, 4 SDR 10, effective August 28,\r\n1977.
\r\n\r\n\r\n
Source: 14 SDR 29,\r\neffective September 3, 1987; repealed, 30 SDR 99,\r\neffective December 22, 2003.
\r\n\r\n\r\nCHAPTER 20:54:03
\r\n\r\n\r\nMATERIALS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:03:01 to\r\n20:54:03:20 Repealed.
\r\n\r\n\r\n\r\n20:54:03:01 to 20:54:03:19. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:03:20. Limitation\r\nof lead content.Repealed.
\r\n\r\n\r\nSource: 14 SDR 29,\r\neffective September 3, 1987; repealed, 17 SDR 75,\r\neffective December 3, 1990.
\r\n\r\n\r\nCHAPTER 20:54:04
\r\n\r\n\r\nJOINTS AND CONNECTIONS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:04:01 to\r\n20:54:04:34 Repealed.
\r\n\r\n\r\n\r\n20:54:04:01 to 20:54:04:33. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:04:34. Dissimilar\r\nmaterials connections.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 7 SDR 56, effective December 16, 1980; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986; 14 SDR 29, effective September 3, 1987;\r\n19 SDR 36, effective September 17, 1992; repealed, 30\r\nSDR 99, effective December 22, 2003.
\r\n\r\n\r\nCHAPTER 20:54:05
\r\n\r\n\r\nTRAPS AND CLEANOUTS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:05:01 to\r\n20:54:05:23 Repealed.
\r\n\r\n\r\n\r\n20:54:05:01 to 20:54:05:18. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:05:19. Manholes\r\nfor large pipes.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 10 SDR 19, effective September 4, 1983; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986; repealed, 30 SDR 99, effective December\r\n22, 2003.
\r\n\r\n\r\n20:54:05:20 to 20:54:05:23. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\nCHAPTER 20:54:06
\r\n\r\n\r\nINTERCEPTORS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:07
\r\n\r\n\r\nPLUMBING FIXTURES
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:07:01 to\r\n20:54:07:63 Repealed.
\r\n\r\n\r\n\r\n20:54:07:01 to 20:54:07:59. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:07:60. Minimum\r\nnumber of plumbing fixtures.Repealed.
\r\n\r\n\r\nSource: 14 SDR 29,\r\neffective September 3, 1987; repealed, 17 SDR 75,\r\neffective December 3, 1990.
\r\n\r\n\r\n20:54:07:61. Location\r\nof floor drains.Repealed.
\r\n\r\n\r\nSource: 14 SDR 29,\r\neffective September 3, 1987; repealed, 30 SDR 99,\r\neffective December 22, 2003.
\r\n\r\n\r\n20:54:07:62. Whirlpool\r\nbathtubs.Repealed.
\r\n\r\n\r\nSource: 14 SDR 29,\r\neffective September 3, 1987; repealed, 17 SDR 75,\r\neffective December 3, 1990.
\r\n\r\n\r\n20:54:07:63. Installation\r\nof fixture fittings.Repealed.
\r\n\r\n\r\nSource: 14 SDR 29,\r\neffective September 3, 1987; repealed, 17 SDR 75,\r\neffective December 3, 1990.
\r\n\r\n\r\nCHAPTER 20:54:08
\r\n\r\n\r\nHANGERS AND SUPPORTS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:09
\r\n\r\n\r\nINDIRECT WASTE PIPING
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:10
\r\n\r\n\r\nWATER SUPPLY AND\r\nDISTRIBUTION
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:10:01 to\r\n20:54:10:94 Repealed.
\r\n\r\n\r\n\r\n20:54:10:01 and 20:54:10:02. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:10:03. Buildings.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 6 SDR 71, effective January 27, 1980; 12 SDR 91, effective December 2, 1985; 12 SDR\r\n151, 12 SDR 155, effective July 1, 1986; repealed, 17\r\nSDR 75, effective December 3, 1990.
\r\n\r\n\r\n20:54:10:04 to 20:54:10:51. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:10:52. Building\r\nvalve.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 8 SDR 176, effective July 4, 1982; 10 SDR 19, effective September 4, 1983; 12 SDR\r\n91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 14 SDR\r\n29, effective September 3, 1987; 15 SDR 136,\r\neffective March 15, 1989; 17 SDR 75, effective\r\nDecember 3, 1990; 21 SDR 40, effective September 4,\r\n1994; 23 SDR 83, effective November 28, 1996; 24 SDR 19, effective August 21, 1997; 29 SDR\r\n52, effective October 20, 2002; repealed, 30 SDR 99,\r\neffective December 22, 2003.
\r\n\r\n\r\n20:54:10:53 to 20:54:10:57. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:10:58. Meter\r\nvalve.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986; repealed, 30 SDR 99, effective December\r\n22, 2003.
\r\n\r\n\r\n20:54:10:59 to 20:54:10:87. Repealed, 12 SDR 91, effective December\r\n2, 1985.
\r\n\r\n\r\n20:54:10:88. Buildings\r\nin which CPVC may be used.Repealed.
\r\n\r\n\r\nSource: 1 SDR 48,\r\neffective December 26, 1974; repealed, 7 SDR 56,\r\neffective December 16, 1980.
\r\n\r\n\r\n20:54:10:89 to 20:54:10:94. Repealed 12 SDR 91, effective December 2,\r\n1985.
\r\n\r\n\r\nCHAPTER 20:54:11
\r\n\r\n\r\nSANITARY DRAINAGE\r\nSYSTEMS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:12
\r\n\r\n\r\nVENTS AND VENTING
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:13
\r\n\r\n\r\nSTORM DRAINS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:14
\r\n\r\n\r\nMEDICAL CARE FACILITIES
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:15
\r\n\r\n\r\nTESTS AND MAINTENANCE
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:16
\r\n\r\n\r\nPOTABLE WATER SUPPLY\r\nSYSTEMS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:17
\r\n\r\n\r\nMOBILE HOME PARK\r\nPLUMBING
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:18
\r\n\r\n\r\nTRAVEL TRAILER PARKS
\r\n\r\n(Repealed. 12 SDR 91, effective December 2, 1985)
\r\n\r\n\r\n\r\nCHAPTER 20:54:19
\r\n\r\n\r\nWATER\r\nCONDITIONING DEFINITIONS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:19:01 Definitions.
\r\n\r\n\r\n\r\n20:54:19:01. Definitions. Terms defined in SDCL 36-25-1 and Chapter 2 of the Uniform Plumbing Code, 2024 edition, have the same meaning when used in chapters 20:54:19 to 20:54:28, inclusive. The following terms have the meaning indicated when used in chapters 20:54:19 and 20:54:28, inclusive:
(1) \"Administrative authority,\" the individual official, board, department, or agency, established and authorized by a state, county, city, or other political subdivision, created by law to administer and enforce article 20:54;
(2) \"Bypass,\" a connection or a valve system that allows raw water to be supplied while the water conditioner is being cleaned or serviced or the media changed;
(3) \"Capacity,\" an amount expressed in total gallons of water treated, meeting a manufacturer's specifications and produced in a defined period of time;
(4) \"Cation exchange,\" in water softening, principally the exchange of calcium and magnesium ions in water for sodium ions on an insoluble ion exchange material;
(5) \"Corrosion,\" the attack by water on any part of a water system, causing the wasting away of metal parts;
(6) \"Disinfection,\" the process of destroying harmful microorganisms, done in accordance with section 609.10 of the Uniform Plumbing Code, 2024 edition;
(7) \"Drain line,\" a line used to carry backwash water, spent regenerant, and rinse water to a waste system;
(8) \"Effluent,\" the water or solution that emerges from a water conditioner during any phase of the operating cycle;
(9) \"Filter,\" a device installed as part of a water system through which water flows for the removal of turbidity, taste, color, or odor;
(10) \"Hardness,\" dissolved calcium and magnesium salts in water;
(11) \"Installation,\" the piping or valving by which water conditioners are connected into the water supply system, including a drain line;
(12) \"Ion exchange,\" a process whereby ions in solution are interchanged by a reactive material;
(13) \"Medium,\" the active material in a filter;
(14) \"Raw water,\" water at the inlet of the water treating unit;
(15) \"Regeneration,\" in general, the backwash, brine, fresh water rinse, and maintenance steps necessary to prepare an exchanger bed for service after exhaustion, and specifically, the brine step in which a sodium chloride solution is passed through the exchanger bed and sodium ions displace hardness ions from the exchanger to permit the hardness to be rinsed to drain;
(16) \"Rinse,\" part of the cycle of a water conditioner operation in which water is introduced to remove spent backwash water or regenerant, or both, prior to placing the conditioner into service;
(17) \"Soft water,\" water containing less than one grain per gallon of dissolved calcium and magnesium salts, as calcium carbonate equivalent;
(18) \"Turbidity,\" any undissolved materials in water; and
(19) \"Water softener,\" a device installed as part of a water system, which produces soft water by cation exchange, removing calcium and magnesium or hardness from flowing water and replacing it with sodium, thereby requiring periodic regeneration with sodium chloride or salt.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Cross-Reference: Definitions, § 20:53:01:01.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
CHAPTER 20:54:20
\r\n\r\n\r\nWATER\r\nCONDITIONING IN GENERAL
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:20:01 Conformance with\r\ncode.
\r\n\r\n20:54:20:02 Repair and\r\nalterations.
\r\n\r\n20:54:20:03 Structural\r\nsafety.
\r\n\r\n20:54:20:04 Repealed.
\r\n\r\n20:54:20:05 Protection of\r\npipes.
\r\n\r\n20:54:20:06 Used or\r\nsecondhand water conditioning and treatment equipment.
\r\n\r\n20:54:20:07 Condemned\r\nequipment.
\r\n\r\n20:54:20:08 Connections to\r\nplumbing system required.
\r\n\r\n20:54:20:09 Location of\r\nwater conditioning and treatment equipment.
\r\n\r\n20:54:20:10 Piping\r\nmeasurements.
\r\n\r\n20:54:20:11 Minimum standards.
\r\n\r\n\r\n\r\n20:54:20:01. Conformance\r\nwith code. All water conditioning and treating systems shall conform to the\r\nprovisions of chapters 20:54:19 to 20:54:28, inclusive, and shall comply with\r\nall other provisions of article 20:54.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:02. Repair\r\nand alterations. When repairing, altering, and installing water\r\nconditioning and treatment equipment, the following standards shall be\r\nfollowed:
\r\n\r\n\r\n(1) In existing buildings or premises in which\r\nwater conditioning and treatment equipment is to be installed, altered,\r\nrepaired, or renovated, necessary deviations from the provision of this code\r\nmay be permitted if such deviations conform to the intent of the code and are\r\napproved in writing by the administrative authority;
\r\n\r\n\r\n(2) When a building is moved from one location\r\nto another, no additional work or connection may be made unless the plumbing in\r\nthe building has been reconstructed to comply with this article or may any\r\nadditional plumbing work be installed in a building where there is defective or\r\nimproperly installed plumbing until the defects have been repaired, renovated,\r\nreplaced, or removed;
\r\n\r\n\r\n(3) Wherever compliance with all the provisions\r\nof this article fails to eliminate or alleviate a nuisance which may involve\r\nhealth or safety hazards, the owner or the owner's agent shall install\r\nadditional water treatment equipment as necessary to abate the nuisance.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:03. Structural\r\nsafety. In the process of installing or repairing any part of water\r\nconditioning or treatment equipment, the finished floors, walls, ceilings, tile\r\nwork, or any other part of the building or premises which must be changed or\r\nreplaced must be left in a safe structural condition in accordance with the\r\nrequirements of the local administrative authority.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986; 23 SDR 83, effective November 28, 1996.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:04. Workmanship.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; repealed, 4 SDR 10, effective August 28,\r\n1977.
\r\n\r\n\r\n20:54:20:05. Protection\r\nof pipes. Protection requirements of pipes used in installing water\r\nconditioning and treatment equipment shall meet the following standards:
\r\n\r\n\r\n(1) Pipes passing under or through walls shall\r\nbe protected from breakage. Pipes passing through or under cinder or concrete\r\nor other corrosive material shall be protected against external corrosion by\r\nprotective coating, wrapping, or other means which will prevent corrosion;
\r\n\r\n\r\n(2) No structural member may be weakened or\r\nimpaired by cutting, notching, or otherwise, except to the extent permitted by\r\nthe administrative authority;
\r\n\r\n\r\n(3) No water pipe may be installed or permitted\r\noutside of a building or in an exterior wall unless adequate provision is made\r\nto protect the pipe from freezing.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:06. Used or\r\nsecondhand water conditioning and treatment equipment. Used equipment or\r\nmaterial for water conditioning and treatment purposes may not be purchased,\r\nsold, or installed unless it complies with the minimum standards set forth in\r\nthis article. The equipment shall be sterilized before it is reinstalled.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n
Source: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:08. Connections\r\nto plumbing system required. All water conditioning or treatment equipment,\r\ndrains, appurtenances, and appliances used to receive or discharge liquid\r\nwastes or sewage shall be connected to the drainage system of the building or premises\r\nin accordance with the requirements of this article.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:09. Location\r\nof water conditioning and treatment equipment. Water conditioning or\r\ntreatment equipment and piping necessary to install the equipment shall not be\r\nlocated in a manner that interferes with the normal operation of windows,\r\ndoors, or other exit openings and shall not be located in a manner that makes\r\nother equipment inaccessible.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:10. Piping\r\nmeasurements. Except where otherwise specified in this article, all\r\nmeasurements between pipes or between pipes and walls shall be made to the\r\ncenter lines of the pipes when installing water conditioning and treatment\r\nequipment.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:20:11. Minimum standards. All water conditioning treatment equipment must meet the Referenced Standards, Table 1701.1, of the Uniform Plumbing Code, 2024 edition.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
CHAPTER 20:54:21
\r\n\r\n\r\nWATER\r\nCONDITIONING MATERIALS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:21:01 Materials used in installation.
\r\n\r\n20:54:21:02 Alternate materials\r\nand methods.
\r\n\r\n20:54:21:03 Approved materials.
\r\n\r\n\r\n\r\n20:54:21:01. Materials used in installation. Materials used in installation of water conditioning and treatment equipment must conform to Section 604.0, Materials, of the Uniform Plumbing Code, 2024 edition.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, the 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:21:02. Alternate\r\nmaterials and methods. Alternate materials and methods shall conform to the\r\nfollowing standards:
\r\n\r\n\r\n(1) In existing buildings or premises in which\r\nwater conditioning and treatment installations are to be altered, repaired, or\r\nrenovated, the administrative authority may permit deviation from the\r\nprovisions of chapters 20:54:19 to 20:54:28, inclusive, if a proposal to\r\ndeviate is first submitted to the administrative authority to determine that\r\nhealth and safety requirements, as they pertain to plumbing, are observed;
\r\n\r\n\r\n(2) Provisions of chapters 20:54:19 to 20:54:28,\r\ninclusive, are not intended to prevent the use of any material, device, method\r\nof assemblage or installation, fixture, or appurtenance not specifically\r\nauthorized, provided the alternate has been approved by the administrative\r\nauthority in accordance with this section;
\r\n\r\n\r\n(3) The administrative authority shall require\r\nsufficient evidence to be able to judge whether proposed alternates meet the\r\nrequirements of chapters 20:54:19 to 20:54:28, inclusive, for safety and\r\nhealth.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:21:03. Approved materials. Water conditioning and treatment equipment contractors are bound by any changes made by the administrative authority pertaining to materials used to install water conditioning and treatment equipment. All materials used in installing water conditioning and treatment equipment must conform to Section 604.0, Materials, of the Uniform Plumbing Code, 2024 edition.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, California 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
CHAPTER 20:54:22
\r\n\r\n\r\nWATER\r\nCONDITIONING JOINTS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:22:01 Tightness.
\r\n\r\n20:54:22:02 Types of joints.
\r\n\r\n20:54:22:03 Use of joints.
\r\n\r\n20:54:22:04 Special joints.
\r\n\r\n20:54:22:05 Increasers and\r\nreducers.
\r\n\r\n\r\n\r\n20:54:22:01. Tightness.\r\nTightness of joints and connections in the plumbing system used in installation\r\nof water conditioning and treatment equipment shall be watertight for the\r\npressure required by test.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 151, 12 SDR\r\n155, effective July 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:22:02. Types of joints. Types of joints must follow section 605 of the 2024 Uniform Plumbing Code.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:22:03. Use of joints. Joints in copper tubing above ground must be made either by using brass or wrought copper water fittings sweated or soldered together, or by means of compression fittings, as provided in section 605.0 of the Uniform Plumbing Code, 2024 edition. Joints in copper tubing under ground must conform to section 609.3(2) of the Uniform Plumbing Code, 2024 edition.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:22:04. Special\r\njoints. Joints from copper tubing to threaded pipe shall be made by the use\r\nof brass converter fittings. The joint between the copper pipe and the fitting\r\nshall be sweated or soldered and the connection between the threaded pipe and the\r\nfitting shall be made with a standard pipe size screw joint.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:22:05. Increasers\r\nand reducers. Where different sizes of pipes or pipes and fittings are to\r\nbe connected, the increasers and reducers or reducing fittings shall be used\r\nbetween the two sizes.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\nCHAPTER 20:54:23
\r\n\r\n\r\nWATER CONDITIONING\r\nHANGERS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:23:01 Vertical piping.
\r\n\r\n20:54:23:02 Horizontal piping.
\r\n\r\n20:54:23:03 Hangers and anchors used in installation of water\r\nconditioning and treatment equipment.
\r\n\r\n20:54:23:04 Strains and stresses.
\r\n\r\n\r\n\r\n20:54:23:01. Vertical\r\npiping. Vertical piping shall be secured at sufficiently close intervals to\r\nkeep the pipe in alignment and carry the weight of the pipe and contents.\r\nVertical piping shall conform to the following standards:
\r\n\r\n\r\n(1) Screwed pipe shall be supported at not less\r\nthan every other story height;
\r\n\r\n(2) Copper tubing shall be supported at each\r\nstory height but not more than ten-foot intervals;
\r\n\r\n(3) Plastic pipe shall be supported at four-foot\r\nintervals.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:23:02. Horizontal\r\npiping. Horizontal piping shall be supported at sufficiently close\r\nintervals to keep it in alignment and prevent sagging. Horizontal piping shall\r\nconform to the following standards:
\r\n\r\n\r\n(1) Steel threaded pipe which is one-inch diameter\r\nor less shall be supported at eight-foot intervals, over one-inch diameter at\r\nten-foot intervals;
\r\n\r\n\r\n(2) Copper tubing shall be supported at\r\napproximately six-foot intervals for piping one and one-fourth inches and\r\nsmaller and ten-foot intervals for piping one and one-half inches and larger;
\r\n\r\n\r\n(3) Plastic pipe shall be supported at intervals\r\nnot exceeding four feet.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:23:03. Hangers\r\nand anchors used in installation of water conditioning and treatment equipment.\r\nHangers and anchors shall be of metal or other material of sufficient strength\r\nto maintain their proportional share of the pipe alignments and prevent rattling.\r\nHangers and anchors shall be securely attached to the building construction.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 151, 12 SDR\r\n155, effective July 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:23:04. Strains\r\nand stresses. Piping in a water conditioning and treatment system shall be\r\ninstalled to prevent undue strains and stresses. Provision shall be made for\r\nexpansion and contraction of piping and for structural settlement that may\r\naffect the piping.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\nCHAPTER 20:54:24
\r\n\r\n\r\nWATER CONDITIONING\r\nINDIRECT WASTES
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:24:01 Indirect waste piping.
\r\n\r\n20:54:24:02 Air gap.
\r\n\r\n20:54:24:03 Special wastes.
\r\n\r\n\r\n\r\n20:54:24:03. Special\r\nwastes. Special wastes treatment shall conform to the following standards:
\r\n\r\n\r\n(1) Acid and chemical indirect waste pipes shall\r\nbe of materials unaffected by the discharge of such wastes;
\r\n\r\n\r\n(2) In no case may corrosive liquids, spent\r\nacids, or other harmful chemicals which might destroy or injure a drain, sewer,\r\nsoil, or waste pipe or which might create noxious or toxic fumes discharge into\r\nthe plumbing systems without being thoroughly diluted or neutralized by passing\r\nthrough a dilution or neutralizing device. The device shall be automatically\r\nprovided with a sufficient intake of diluting water or neutralizing medium to\r\nmake its contents noninjurious before being\r\ndischarged into the soil or sewage system.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\nCHAPTER 20:54:25
\r\n\r\n\r\nWATER CONDITIONING --\r\nWATER SUPPLY
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:25:01 Cross-connections.
\r\n\r\n20:54:25:02 Approval of devices.
\r\n\r\n20:54:25:03 Backflow.
\r\n\r\n\r\n\r\n20:54:25:01. Cross-connections.\r\nPotable water supply piping, water discharge outlets, backflow prevention\r\ndevices, or similar equipment shall not be so located as to make possible their\r\nsubmergence in any contaminated or polluted liquid or substance.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:25:02. Approval of devices. Before any device for the prevention of backflow or backsiphonage is installed, it must have first been certified as meeting the requirements of Section 603.2, Approval of Devices or Assemblies, of the Uniform Plumbing Code, 2024 edition. Any person in control of a device that is installed in a potable water supply for protection against backflow must maintain the device in good working condition. The administrative authority having jurisdiction may inspect the device and, if it is found to be ineffective or inoperative, the administrative authority must require replacement of the device.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:25:03. Backflow. The water-distributing system and each water outlet must be protected against backflow. The water outlet must:
(1) Have the outlet end from which the water flows spaced a distance above the flood-level rim of the receptacle into which the water flows, which is sufficient to provide a minimum air gap as required in table 603.3.1 of the Uniform Plumbing Code, 2024 edition; or
(2) If it is not possible to provide a minimum air gap, be equipped with an accessible backflow preventer installed on the discharge side of the manual control valve, which complies with section 603.2 of the Uniform Plumbing Code, 2024 edition.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2015 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
CHAPTER 20:54:26
\r\n\r\n\r\nWATER\r\nCONDITIONING EQUIPMENT
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:26:01 Pumps and other\r\napplicance.
\r\n\r\n20:54:26:02 Repealed.
\r\n\r\n20:54:26:03 Allowance for\r\ncharacter of water.
\r\n\r\n20:54:26:04 Procedure for sizing water\r\nconditioning and treatment equipment for domestic or commercial application.
\r\n\r\n20:54:26:05 Equipment\r\nremoval and bypass.
\r\n\r\n\r\n\r\n20:54:26:01. Pumps\r\nand other appliances. Water pumps, tanks, filters, softeners, and all other\r\nappliances and devices shall be protected against contamination. The drains\r\nfrom pressure tanks, relief valves, and similar equipment shall be connected to\r\nthe drainage system through an indirect waste.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 151, 12 SDR\r\n155, effective July 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:26:02. Water-distribution\r\npipe, tubing, and fittings.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, repealed December 2, 1985.
\r\n\r\n\r\n20:54:26:03. Allowance\r\nfor character of water. When selecting the material and size for water\r\nsupply pipe, tubing, or fittings, due consideration shall be given to the\r\naction of the water on the exterior and interior of the pipe. No material that\r\nwould produce toxic conditions in a potable water supply system may be used for\r\npiping, tubing, or fittings. No piping material that has been used for other\r\nthan a potable water supply system may be reused in the potable water supply\r\nsystem.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:26:04. Procedure for sizing water conditioning and treatment equipment for domestic or commercial application. All pipe and fittings used for installation of water conditioning and treatment equipment for domestic and commercial applications must conform to section 604.0 of the Uniform Plumbing Code, 2024 edition. Water conditioning and treatment equipment must be provided with full flow control or bypass valves.
Source: SL 1975, ch 16, § 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 14 SDR 29, effective September 3, 1987; 23 SDR 83, effective November 28, 1996; 29 SDR 52, effective October 20, 2002; 30 SDR 99, effective December 22, 2003; 38 SDR 40, effective September 20, 2011; 43 SDR 31, effective September 12, 2016; 52 SDR 42, effective October 28, 2025.
General Authority: SDCL 36-25-15.
Law Implemented: SDCL 36-25-15.
Reference: Uniform Plumbing Code, 2024 edition, International Association of Plumbing and Mechanical Officials. Copies may be obtained from the International Association of Plumbing and Mechanical Officials, 5001 East Philadelphia Street, Ontario, CA 91761. Copies may be viewed free of charge at https://epubs.iapmo.org/2024/UPC/.
20:54:26:05. Equipment\r\nremoval and bypass. No water conditioning and treatment equipment may be\r\nremoved without restoring the water supply. The piping shall be supported and\r\ndrainable. A bypass shall be installed around equipment where the water\r\nconditioning and treatment contractor has relinquished control, ownership, and\r\nresponsibility. Where the outlet of the equipment is the point of use, no\r\nbypass is required.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\nCHAPTER 20:54:27
\r\n\r\n\r\nWATER CONDITIONING\r\nINSPECTION
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:27:01 Inspections.
\r\n\r\n20:54:27:02 Repealed.
\r\n\r\n20:54:27:03 Test.
\r\n\r\n20:54:27:04 Responsibility.
\r\n\r\n20:54:27:05 Reinspection.
\r\n\r\n20:54:27:06 Violations.
\r\n\r\n\r\n\r\n20:54:27:01. Inspections.\r\nAll water conditioning and treatment installation or alterations are subject to\r\ninspection to insure compliance with all the requirements of chapters 20:54:19\r\nto 20:54:28, inclusive.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:27:02. Notification.Repealed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; repealed, 12 SDR 91, effective December 2,\r\n1985.
\r\n\r\n\r\n20:54:27:03. Test.\r\nUpon completion of the installation of water conditioning or treatment\r\nequipment, it shall be tested and proved tight under a water pressure not less\r\nthan the working pressure under which it is to be used. The water used for\r\ntests shall be obtained from a potable source of supply.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n20:54:27:04. Responsibility.\r\nThe holder of a permit shall make sure that the work will stand the test\r\nprescribed.
\r\n\r\n\r\nSource: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n
Source: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n
Source: SL 1975, ch 16,\r\n§ 1; 12 SDR 151, 12 SDR\r\n155, effective July 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\nCHAPTER 20:54:28
\r\n\r\n\r\nPORTABLE WATER\r\nCONDITIONING UNITS
\r\n\r\n\r\n\r\nSection
\r\n\r\n20:54:28:01 Independent bacteriological tests.
\r\n\r\n20:54:28:02 Disinfection.
\r\n\r\n\r\n\r\n
Source: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n
Source: SL 1975, ch 16,\r\n§ 1; 12 SDR 91, effective December 2, 1985; 12 SDR 151, 12 SDR 155, effective\r\nJuly 1, 1986.
\r\n\r\nGeneral Authority:SDCL 36-25-14, 36-25-15.
\r\n\r\nLaw Implemented:SDCL 36-25-15.
\r\n\r\n\r\n