Have a look at this garbage they selling to us. This pump was used in my sump as a return for only 6 months. I took the back off to clean it and was unpleasantly surprised to see rust everywhere. I also pulled the impeller and it was rusting as well. They use some kind of low grade stainless steel casing over the impeller. There is a 1 year warranty on the pump. I wonder if I should get it replaced or just toss it in the trash-can. A replacement will probably not be any better if they don't change the materials.
