Success (Partial)
Well, it was the weekend, when we can do this kind of work, so we forged ahead yesterday. We drove a new point - this is glacial till we're driving through, so not an easy job. Anyway, we got the point down 25', with standing water in the pipe at 15.5' below the ground surface. Problem is, we can't get any water out of it. Here's the way we have it set up - shallow well jet pump with a new back flow valve right next to the pump (because that's the way the old one was set up), only one elbow to the top of the driven 1.25" pipe. We primed the pump, but of course, that leaves the pipe going into the well empty anyway. You can't fill that because you could pour all the water you wanted into that pipe, it would just go into the ground water.
What are we doing wrong? Would it be possible to put a 3/4" flexible copper pipe 22' or 23' into the well instead of drawing water up through the driven pipe, just in case there's an air leak in one of the joints in the driven pipe? Possible to put a small galvanized pipe or copper with a foot valve into the driven pipe so we could hold prime? What say you experts?
Thank you for your help