Replaced sump seal. Water dripping down diverter stem. This seal is part of sump seal. Since you have to remove all parts from seal, replaced all rubber seals that I could. Everything was aged, so why not while your under unit anyway. Replaced diverter motor also since water was dripping onto it. I used o ring grease instead of water, to help installing. WATCH the videos!!! Step by step and very helpful. They show a few tricks that will aid in the install.