Came home for work today with my Polaris Pump making a grinding type noise and the Polaris not working. Below is a Youtube video with the sound it is making. Anyone know what the problem might be? The pump motor is not that old. Maybe a little over a year. I successfully replaced my main pump motor recently, so I may be able to tackle this repair if I can just determine what the affliction is. I'd appreciate any advice as to what the problem might be.