How often do backflow preventer valves need to be replaced?

There isn’t a fixed replacement schedule for backflow preventer valves. Replace when the unit fails testing, leaks, or can’t hold pressure. In the Chicago area, technicians often rebuild first, then replace if parts are obsolete or damage is severe. Annual testing helps catch issues early. Watch for corrosion, continuous discharge from the relief port, or repeated test failures. A licensed plumber can confirm if a rebuild kit, repair, or full replacement is best.

<br/> Updated: 2025-12-26 00:00:00 <br/>

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