I plan to close my IGP myself for the first time this year, after watching the pros do it the last couple years. I plan to hook my rather large Craftsman air compressor up to the drain hole on the pump, and push the water out the returns and skimmers, then blow air through the main drain and airlock. I've already done a "practice run" and got air bubbles through the MD.
My question is this: when blowing through the skimmers (I have two), how do I stop the blown out water from running back into the skimmer? The hole in the skimmer is at the bottom, and its 10 inches deep or so. When I blow air from the pump and out the skimmer, it seems a lot of water will be left in the skimmer, and just run right back in. It seems the pros just let this happen, then added antifreeze. I'd rather blow it dry.
I was thinking of some sort of "hose" which would screw into the bottom of the skimmer, and blow the water out through that. Do they make anything like this -- it would need the same threads as a gizmo.