Good Afternoon Harry,
Going back to the beginning of the thread the OP stated that hi static level was 60ft. He mentioned a well depth of 322 ft. So thats 260 ft of water minus the pump depth at 20 ft off the bottom, giving hom 480 to 500 gals of reserve... 1 1/2 gals per t Thats quite a bit of water for just domestic use.Ive read through the thread, and didnt see any mention of GPM return rate, but Im finding it hard to believe that he is actually running out of water. On a guess, and only a guess it almost sounds as if there is an issue with the pump.
Just a comment, by lowering the pump 10 ft, your only going to get about another 15 gals of reserve, and usually pump guys are not big on splicing in another section of pipe...