Thanks Waste!

The link works fine. Also, it sounds like a "doable job." Good point about keeping debris out from behind the liner. The deep end of the pool has a 36" wide sidewalk, then the dirt/yard tapers slightly away from that. Do you think it's possible to drive a short section of EMT (electro-mechanical tubing) through the 3" hole outward to a vertical hole next to the sidewalk? Fortunately, it's all dirt with no rock. Then, pick out the dirt with a long tool and vacuum?

Steve