Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
1603.13 Pumps — 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) § 1603.13 · Effective January 1, 2026 · Official source: Building Standards Commission
Pumps serving rainwater catchment systems shall be listed. Pumps supplying water to water closets, urinals, and trap primers shall be capable of delivering not
«
«
«
«
«
«
less than 15 pounds-force per square inch (psi) (103 kPa) residual pressure at the highest and most remote outlet served. Where the water pressure in the rainwater supply system within the building exceeds 80 psi (552 kPa), a pressure reducing valve reducing the pressure to 80 psi (552 kPa) or less to water outlets in the building shall be installed in accordance with this code.
Explained in plain English
Guides that cite this section.
Get a plain-English answer with a citation back to this text.
Ask AI about this code