How often does a backflow preventer need to be inspected?

Most backflow preventers must be tested and documented on a schedule set by your local water authority or code. The exact interval varies by municipality and property type, so a licensed plumber should confirm your requirements and provide proof of testing.

Quick checks:

• Look for a dated test tag on the valve.
• Inspect for leaks, corrosion, or a missing cap.
• Schedule testing after installation, repair, or relocation.

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

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