So i hooked this thing up sitting above a 300gallon rubbermaid. 1 3/4" outlet pointed staight into the water about 1" above the surface. When I turned it on the entire 300 gallons looked like the ocean frothy overflowing on all sides lost about 50 gallons of water on the floor of my garage. I think it will run the 4000gallon pond out back--I was LOL. then had to shopvac and towel up the mess. It filled 5 gallons in 21 seconds so i figure if my math is correct it is about 2000gph and 30 foot head--i went up on the garage roof with the hose and it was just as strong 15' up. I only need about 10-12' of lift to run the whole outside system.
Thanks again Bob Geer.