Oh jeepers! This is more difficult than I thought it would be. The output spout is 5.5 feet above the sump.The drain pipe are 1.5 inches and the return lines are 3/4inch PVC piping. I don't know if this is good or bad, this is what I got. I am shooting to get a 600 gph pump so based on what everyone wrote, I am thinking this should be adequate??
(I am not new to fishkeeping, but plumbing is a new realm for me)