.2 GPM should not cause a problem. Is your suction flooded? Or do you have to draft? If suction is flooded you will have a leak between the tank and pump. If it is a draft you will usually have bubbles in the pump discharge water. This is usually more visable in the hot water side. Check a faucet with out a screen. Put a guage on a discharge line and see what is actully happening. A guage will let you know if you have a pump discharge valve is leaking as well as your pressure switch on/off setting. Differential pressure.
