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How to Identify a Failed Backflow Preventer Test | Leaking Shutoff & Bad Second Check Explained
In this video, we demonstrate a real-world double check valve backflow preventer test and what happens when things go wrong. Using a ¾-inch Febco 850, our technicians walk through two critical failure scenarios: a leaking downstream shutoff that invalidates the test, and a failed second check valve. More information on the Febco 850 Series is ...
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