Thanks. I already have a CSV on the system, but it might not have been enough to help my Pentek pump. After 18 months of use the pump is tripping the breaker, and the readings don't seem to indicate that the wires are exposed to ground. When I read between the yellow and black I get 4.4, between the yellow and red I get 0.8, and between the black and red I get 4.4. I know those readings are odd, but I'm also not sure what they mean. This weekend I'm pulling the pump, so I guess I'll find out then if I need another one.
Clayton