The inlet does not appeear to have an airleak. The lagoon we are pumping from is lower than normal but the inlet pipe is still submerged. I don't hear any hissing around the pump. Is the impeller bad?

It has a pressure switch and the contacts won't engage sometimes when the timer (controller) turns on. I sand them off clean but the condition repeats. The supply wire is the correct size. Is there a better way, like a relay control?

I took apart the pump, found what looks like a PC board, broken. I now have 11 wires to choose from. It's a 1/2 HP pump, and I dont want it to do tricks, just pump the darn water. How do I determine which 2 wires to power to get it running (ok, 3 if you count earth ground)?

There are two well lines that join in a 'tee' before connecting to my well pump. Is there a reason or possibility that the system actually draws from both of them or did at some point? I've replaced the old pump that burned out and can't get the system to prime. Is there a way that I can figure out if the wells are still good or if just one of them is?