Upon working on the pump (still have just a little to go), I have noticed that there are 2 red wires plugged into the diaphram end of the pump and a black (I'm assuming this is the ground like with autos) wire come out of the bottom of the pump motor with one of the red wires. Is this a safety type switch to make sure the pump has a volume of water to trigger the power?
I'm going to try and get some water to run out of the line coming from the holding tank and see if it will fire up. I thought it had plenty of water in the tank the last time I tried it and it still didn't work.