Match the test kit to the type of backflow preventer design that you have in place. You should follow the exact directions on the test kit to make sure you're receiving accurate results.

Cover all the pool PVC pipes that are exposed. You can use blankets, sweaters or anything thick. You don’t want to use ...

Close the valves and release any water by using a screwdriver to turn the test ports to release any water that is in the backflow preventer ... says to run that pool equipment 24/7 to keep ...