FREE Backflow Assembly Tester Evaluation & Troubleshooting Questions and Answers
Which issue can cause a reduced pressure zone (RPZ) backflow preventer to continuously discharge water?
A failed first check valve can cause pressure imbalance, leading to continuous discharge from the relief valve of an RPZ assembly.
Which tool is commonly used for testing backflow prevention assemblies?
A differential pressure gauge is used to measure pressure loss and verify the proper function of backflow prevention assemblies.
What is the first step in testing a backflow prevention assembly?
Before performing a test, the shut-off valves should be closed to isolate the assembly and ensure an accurate assessment of its function.
What is the main reason a double check valve assembly (DCVA) would fail a test?
A leaking check valve prevents the DCVA from properly sealing, which allows backflow and leads to test failure.
How often should a backflow prevention assembly be tested to ensure proper operation?
Most regulations require annual testing of backflow prevention assemblies to ensure they are functioning correctly and protecting the potable water supply.
What is a common cause of backflow preventer failure?
Debris trapped in the check valve prevents it from sealing properly, which can lead to failure of the backflow preventer.