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Commission hears proposal to require unit shutoff valves in multi‑unit remodels to save water
Summary
DBI’s chief plumbing inspector outlined proposed amendments to the California Plumbing Code to require accessible shutoff valves for multi‑dwelling remodels, aimed at reducing wasted potable water during repeated shutdown/refill cycles. Commissioners discussed cost, access and applicability to existing buildings.
Steve Penelli, chief plumbing inspector, presented proposed amendments to sections of the California Plumbing Code intended to reduce unnecessary potable water waste and disruptions during major remodels in multi‑dwelling buildings. The proposal would require shutoff valves for multi‑unit branches so work in a limited area would not require shutting down and dumping water from larger mains repeatedly.
Penelli said the requirement targets major remodels in multi‑unit buildings rather than single‑family homes; he estimated the hardware cost per valve to be in the low tens of dollars. Commissioners asked about how units would be accessed (in‑unit vs. common area), whether the requirement would be retroactive on existing buildings undergoing tenant improvements, and potential impacts on small property owners. Penelli said options include placing shutoff valves in accessible common areas or inside units where HOAs can grant access; he suggested that submetering trends may make such valves more common.
After discussion, commissioners signaled support for the concept and requested staff refine language and impacts for a future action item.
