My pump switch constantly cuts on and off when running water. I have a in well pump with a pressure tank in basement. The switch is there as well. I can hear it cut on and off and the water pressure fluctuates each time. Is the tank water logged, or air logged. What can I do to get this working correctly. It is my understanding that the tanks should hold cold water and pull down before the pump kicks on. The pump start pumping as soon as we flush, or turn on a faucet. Any help is greatly appreciated. Live far out in the country, plumbers are hard to locate, so many times its a do it yourself type repairs. Thanks Lan