How often do backflow preventer valves need to be replaced?

Backflow preventer valves are replaced when they fail testing, leak, are corroded, or can’t be repaired. There isn’t a fixed timeline, because lifespan depends on water quality, usage, pressure changes, and maintenance. A licensed plumber can test the device and advise repair (rebuild kit) or full replacement for Milwaukee and Waukesha homes.

Quick checks:

• Book a test after noticeable pressure changes or plumbing work.
• Replace if it fails a test, drips at the relief port, or parts aren’t available.

Updated: 2025-12-30 00:00:00

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