shallow well pump loses prime overnight | Terry Love ...
Aug 12, 2008 · If not; that is another possible air leak. Another thing, you said "The system shuts down over night and loses the prime. In the morning I have to go down to the basement and turn the pump on and let it run." Why do you shut the pump off in the first place? Don't you have a tank with this system? If it were left on it wouldn't lose it's prime.