Why is my backflow preventer leaking?
Why is my backflow preventer leaking? Another cause for a leaking backflow preventer is incorrect placement in the head assembly. If it is placed upstream from a timer and the system is not being used but the hose is on, pressure will build up, which can damage the backflow preventer. To relieve some of the pressure, water will leak from the relief holes. How do you stop a backflow valve from leaking? Sprinkler Backflow Preventer Leaking and Tips For Fixing ItTurning the Main Water Supply Off. Removing the Nut on the Bell Cover. Inspecting the Interior of the Valve. Putting...