Review on Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles by Brian Piecuch

Updated - Customer service is great. My pump slipped working and I was treated very respectfully. Would gladly purchase from then again :)Works fine at about 2 ft lift, anything higher and it really slows down. I bought it for my 4ft fountain, but it barely trickles at that height. With my frog it works fine. It has gotten stuck a few times and needs a kick start - just hit it and it starts again. You get what you pay for.