re: Self drilling well

Did several back in the day with my Dad and the neighbors who all had gardens. Actually "dug" the wells by jetting with a 4 inch pump, choked down to 3/4 inch pipe. You weld a 3/4 collar to the bottom of a screen, then attach joints of pipe through the ID of the screen. Lower the screen while pumping, with any sort of a-frame and jet away. Have a short joint of large diameter pipe with a nipple coming out the side for the returns to flow out of the hole into a couple of pits. We tied back to the screen with 3 inch PVC to act as our casing. Once you get to bottom, flush to clean returns, then dump gravel in around the casing to gravel pack the screen. Pull out the 3/4 jet pipe and drop down some PVC down the center to the middle of your screen section (where their should be water) and pump away.