It just needed some kind of a switch for the pump and was only 90 bucks. But in his notes, they had put it in in 1986 and had to go 140 feet down to get below the nitrates. This used to be farm pasture back in the 1960s and they do still farm to the east of us. (We do have a healthy drinking water osmosis system) It will cost a fortune if we even have to replace the well.