How often do backflow preventer valves need to be replaced?

Backflow preventer valves are replaced when they fail testing or show damage, not on a fixed schedule. Expect replacement if the unit leaks, is cracked or corroded, or cannot pass a certified test after cleaning or repair. Many assemblies can be rebuilt; a technician will advise whether repair or full replacement is more practical for your system in Bloomington or Martinsville.

Quick checks:

• Fails annual test after repair
• Persistent leaks at relief port
• Cracked body or severe corrosion
• Parts no longer available

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

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