Well I hate to say it, but the vinegar bath was a temporary fix for me as well. Tonight the pump shut itself off for no good reason. The impeller was spinning perfectly fine, it just decided there was a fault and shut itself off. I put my backup Mag 9.5 on for now, but I'll be getting a new pump since my Mag likes to trip my GFCI. Since I don't even use the controllable features (it plays hell with my beananimal overflow) I think I'll just replace it with a traditional AC pump.