I drove a two inch sand point and had water at about fifteen feet. I hooked up my half horse well pump but could not get water. The bottom of the point is about another eight feet below the water table. I slid an inch and a quarter pvc with a foot valve down inside the two inch and was able to draw about 5 gpm. I wnat to drive another two inch, in another area. Should I drive the well point with a check valve just above the point? I am a little worried about driving the brass check valve. Would a jet pump work better? Thanks