Anyone have any experience with the pondmaster 50 mag pumps, they are supposed to do 5000 gph and 1500gph at 15' head. I think I may switch to one of those as I am going up 10-12 feet and running horizontally 20'. They look to be a huge pump, made by Mag Drive but for pond applications. do you think that would be to much flow out of a sump? I would think it should be ok, I just don't know if it would cause too much flow in the sump?

http://www.123ponds.com/pm50gphsupop.html