https://terrylove.com/forums/index.p...dfos-sp.81721/

Not bad at all for the original stainless steel pumps. I seen longer life out of Goulds though with plastic impellers and they balance the load better than a grundfos pump. Valveman's pump always comes up short. But, the person could've had a waterlogged tank and knocked out the submersible pump(I will give the benefit of the doubt).