We drained the tank, pumped 18# into it, turned on the pump,it shut off at 30#, we drained again, it now reads 0#. We turned the pump on with 0# in the tank, and it is now up to 35# and shutting off by itself. This seems great, but later on today after washing clothes and a shower or 2 along with some dishes being done (not at the same time) the pump will not shut off on its own and we have to shut it off at the breaker. We turn it off and on real quick and it just goes off. I do have a theory, because everything is new, Can it be, our well is 35ft deep with about 6ft of water when filled. We have a deepwell jet pump. Maybe we are asking too much of the whole system. IN other words, are we asking this system to supply too much water in too short of a time period?