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.
Shoo-Fly is affordable, and saves us money. I would give them 5 out of 5 stars. Truly a well-organized, well-thought-out product that each and every horse owner could be well served by.
Melanie and JT Burnley - Wrenwood Dressage