180' well - new 1/2hp Morris sub pump - new Well-X-Trol 20gal tank - new switch and valve. 60' of water and sound like Niagra Falls when you take off cover. Can not get pressure past 45lbs, however can run water for hours 850gal hot tub without problem. If i set valve at 50lbs pump never stops running though water is off, when i try and use the water a few hours later, pressure falls to 10lbs. If I shut electricity off to pump for 10 minutes, i have water and pressure back to 45lbs. Can water be running in and out of my well so quickly that i can not build past 45lbs, and if so is there a solution short of digging a deeper well?