after completely purging all air from the bladder in a 30 gallon expansion tank with bladder,I then turned on the well pump and let the pump build to its high limit cut out of 45 pounds=no water came out the schraeder valve with pin depressed during pressure. build up,Then shut off pump and drained water from system until pressure reached lo limit cut in at 30 pounds and stopped drainlng water, Then added air thru schraeder valve to 28 pounds.Now with faucet open pump cycles from 45 pounds hi limit down to 30 pound cut in in about 5 seconds with maybe 2 quarts of water coming out faucet And there is a noticeable bang ln the pipes every time the pump shuts off
What can I do to stop the short cycling which is so bad for the well pump.