Sprinkler pump overheated
I woke up the other morning to hear my pump running on a non watering day? When I came out to check it I noticed it sounded quiet, and realized there was no water running through the pump, it was dry, almost as if I lost prime. I then unplugged the pump.I am in the process of replacing all the PVC because it swelled up from the heat and now leaks from the joints. I could really use some help figuring out why this happened in the first place. I have a cast Iron pump that seems to be working fine so it wasn't burnt up. I have a shallow well with a check valve just above the surface in line.
Thanks for any help,