Lift Valve is built out of brass with a viton seal and 3/8" compression fitting. This check valve allows fluid to be pumped from the drum into the system freely and then restricts the flow of the liquid back into the drum. This prevents the pump from losing it's prime and having dry starts.
I tried several things to get rid of the flies, but nothing worked. I installed my Shoo-Fly system last year and have had no more fly problems ! I was shocked at how fast it worked.
Caryn Henry Barrel Horses - Deleon Springs, Fl 32130