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When should a backflow preventer be tested?

How often does my backflow preventer need to be tested? Reduced Pressure Zone (RPZ) assembly needs to be tested annually and rebuilt every 5 years. Double Check Valve (DCV) assembly needs to be tested every 3 years.

How do I know if my backflow preventer is working?

An easy way to tell if your backflow preventer isnt working is simply by testing the quality of your water. Any contaminants, foul odors, or unhealthy aspects of your water could be from a failed backflow preventer and contamination in your water supply.

How do you test a backflow device?

Open the high A valve. Slowly open the low B valve no more than turn. Hold the valve at this position and observe the gauge reading at the first moment the first discharge is noted from the relief valve. Record this as the opening differential pressure of the relief valve on the test report form.

How often should a backflow device be tested?

TESTABLE ASSEMBLIES: For the protection of your drinking water supply the backflow prevention assembly, as described on the reverse-side of this form, shall be tested at least annually pursuant to the requirements outlined in the California Code of Regulations, Title 17 7605, Los Angeles County Code, Title 11 11.38

How long is a backflow test good for?

Upon successful completion of the examination, the certification is valid for a two year period. To qualify for the examination, an applicant must: Provide a copy of successfully passing a formal backflow prevention course. Be employed by a California State Licensed Contractor or possess a State Contractors License.

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