"It would help if when the pump is cycling that you pull the cover off the pressure switch and see if the points are opening and closing or if the pump is cycling while the points remain closed."

Thanks Keith. Yes, the points in the pressure switch close when the pump is on and open when it's off. The pump runs steadily when I close the faucet valve that leads to the 30 gallon bladder tank and open the extra valve that runs out to the line that used to bring water from the lake (it's sealed off now.)