I was once at a persons home & their well had a pump house built over it . The water was spraying out of the well seal & hitting the roof of the pump house & dripping down everywhere . They had a ditch that carried the water out of the pump house & over the bank . They also said the well sprayed water year around . They had a jet pump & pressure tank in the pump house . I've always wondered what would happen if the top of the casing was completely sealed , with a pipe from the seal to a pressure tank & a pressure relief valve & then feeding the house . In other words I wonder if the well would make good pressure & eliminate the need for a pump . Has anyone ever seen such a system ?