Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
409.5 Backflow Protection.
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.
The water supply to a bathtub and whirlpool bathtub filler valve shall be protected by an air gap or in accordance with Section 417.0.
Get a plain-English answer with a citation back to this text.
Ask AI about this code