How to Test a DCVA Backflow Preventer (Is It Safe?)
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How to Test a DCVA Backflow Preventer (Is It Safe?)
This is how to test a DCVA (Double Check Valve Assembly) backflow preventer. Backflow preventers protect your water supply from contamination, but they need to be tested regularly to make sure both internal check valves are working properly. Basic test procedure: Inspect the assembly and flush test ports to remove debris Connect the test gauge ...
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