I am winterizing my sytem myself for the first time. When I hook my compressor to the spigot after the backflow device, the air comes out the backflow device (bell top) instead of pressurizing the main line to the sprinkler heads. How do I stop the air from coming out the backflow device? Thanks!
I am winterizing my sytem myself for the first time. When I hook up my compessor on the outlet side of the backflow device the air comes out the backflow (bell top) instead of pressurizing the main line to the sprinkler heads. How do I stop the backflow device from leaking air? Thanks!
