We recently bought acreage that has a 12" well casing and a 5 hp two wire pump. I constantly have air in my system and the control box burned out after 2 month,costing us nearly $600 to replace. My two inch pipe is tee'd off to a 2 inch ag line(not going into tanks) and beyond the first tee it is tee'd again into a tank on both sides having been reduced to inch and a half pipe. eventualy I believe I should go bladder tanks ,but in the interim how should this system be plumbed to eliminate air? The tanks are quite large(about 3' wide by 5' tall)There is one air bleed in the side of one tank,I added a 1" balance tube at the top of the tanks to try and aleivate the air in the water problem,but had marginal success.