Filed as: South Dakota Plumbing Commission proposed rule changes
South Dakota's plumbing rules now adopt the 2024 Uniform Plumbing Code with specific modifications that affect how plumbers install and inspect drainage, water, and venting systems. Key changes include stricter floor drain slope requirements in mechanical rooms (one-fourth inch per foot radius), allowance of CPVC Schedule 80 plastic pipe for high-temperature underground discharge instead of requiring cast iron, and new guidance permitting horizontal wet vents up to 15 feet for single-family dwelling floor drains under specific conditions. The rules also modify requirements for dishwasher drainage, water heater drip pans, backflow prevention testing, and vent terminal sizing, while removing some prior restrictions on pipe materials and installation methods.
AI-generated from the adopted rule text — verify against the official documents.
Modify amendments to the 2024 plumbing code adoption including clarifying floor drain sloping, acceptable use of CPVC 80 pipe and fittings, and guidance for horizontal wet venting.
Moved by Rep. DeGroot, seconded by Sen. Mehlhaff, to deem the rulemaking process complete; passed unanimously.
No specific cites listed — see the package documents.
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