Come to find out, the cord had come unplugged from the extension cord inside the PVC I was pushing it through! The filter ran all night. I'm anxious to go out there this a.m. and see if the water has cleared up a bit.Yes, very frustrating! Ive had a few projects like this. Garbage disposal in our sink stopped working. We checked everything….power, outlet, GFI, etc. Bought a new one, put it in - NOTHING! After even more digging around, turned out to be a loose wire on the on/off switch. AND, the old one was fine afterall. At that point - the new one stayed in.