I was running 2 -1hp pumps in the gh I calculated their wattage to be 1000 ea,way too much money to run. They rocked the vats and fish had to be healthy to survive the current. I stepped down to gen-X pcx40s and cut my wattage by more than half and still have the flow I need. The pool pumps do push alot of water but... the heat given off by those suckers aint worth the flow. Trust me when I tell you thats too much pump!!! I have two sitting around here in the scrap pile,pay shipping and you can have one to try. these puppys ran on 220 but you can wire them for 110 . if the flow is too high you can just dump back to the sump or use the flow to connect seperate systems. Bergovy if you havent bought one yet and still want to try it my offer still stands ,shipping is all it will cost you to find out
and laverda by restrickting the flow of that pump you are making it pull more power, I would dump it back to the sump before I restrcted the flow