Pump starts running the second the water is turned on
The very second the taps at home are turned on the pump instantly starts running. There is no lag time between the taps being turned on and the pump kicking in. It's asthough no pressure whatsoever is being built up in the pressure tank. I've tried adjusting the pressure swicth to fix this problem, but no luck. Also every few minutes the gauge on the pump shows a drop in the pump's pressure and then the pump starts to run until the pressure is built back up. Then it starts over again. What could be wrong? I'd appreciate some help.