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How often do backflow prevention devices need to be tested?

April 26, 2017backflow Devices prevention tested

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How often do backflow prevention devices need to be tested?

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In order to ensure the proper operation of a backflow prevention device, it must be tested upon installation, repair, relocation or replacement, and at least once a year thereafter. To ensure that backflow prevention devices are functioning properly, a certified tester must test them annually.