Backflow Prevention (RPZ Valve) Test Certificate
An RPZ (Reduced Pressure Zone) valve test certificate confirms that a backflow prevention device has been tested and is functioning correctly to prevent contamination of the public water supply. RPZ valves must be tested annually by an approved tester and results recorded on a formal certificate.
What it covers
- RPZ valve identification and location
- Check valve 1 differential pressure test
- Relief valve opening point test
- Check valve 2 differential pressure test
- Overall pass/fail determination
- Recommendations for repair or replacement
Who needs a RPZ Valve Test?
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Frequently asked questions about RPZ Valve Test
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