704.3 Commercial Sinks — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 704.3 · Effective January 1, 2026 · Official source: Building Standards Commission
Pot sinks, scullery sinks, dishwashing sinks, silverware sinks, and other similar fixtures shall be connected directly to the drainage system. A floor drain shall be provided adjacent to the fixture and shall be connected on the sewer side of the sink. No other drainage
line shall be connected between the floor drain waste con nection and the fixture drain. The fixture and floor drain shall be trapped and vented in accordance with this code.
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