Chapter 6 — WATER SUPPLY AND DISTRIBUTION
607.5 Valves.
California Plumbing Code (Title 24, Part 5) · 2022 edition · updated 2026-09-12 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Pressurized tanks shall be provided with a listed pressure-relief valve installed in accordance with the
2022 CALIFORNIA PLUMBING CODE 153
WATER SUPPLY AND DISTRIBUTION
manufacturer’s installation instructions. The relief valve shall be discharged in accordance with Section 608.5. Where a potable water supply tank is located above the fixtures, appliances, or system components it serves, it shall be equipped with a vacuum relief valve that complies with CSA Z21.22.
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