air in line

System works fine- cut-in/out pressures correct (45 seconds from cut-in to out), draw down OK (about 9 gal. 32 gal. Water Worker tank. But- considerable air in line pushed into tank at start-up. At cut out, pressure immediately drops about 2lbs. and then holds steady. Some water hammer at...

Over night or after sitting awhile air gets in the lines and sometimes clears up after running awhile or sometimes loses prime. Pump struggles to reach shut off much of the time. When taking a shower the water after a few minutes the pressure drops off to nothing then after a short time comes...