Got a call this afternoon. Customer said he had trouble with well pump. Plumber installed new pump but it kept tripping the breaker. I get there customer said plumber told him to get an elect. something was wrong with the wire in the ground which caused the old pump to go out. Plumber gets check and runs. I looked at new pump, which is identical to one I install at my own home about a month ago, it plainly states on the top of the motor " Factory wired for 240 volts". I pull cover off of pressure switch. Black landed on one term. on switch, white and bare grnd. landed on ground screw. Go in house to panel, dp20. Rewire switch every thing good. I ask customer where the old pump was,I had a gut feeling, "oh, the plumber said he would dispose of it for me". I am sure he did. I didn't have the heart to tell him it probably was the pressure switch on the old pump that went out and the plumber was nice enough to screw him out of some money.