Does anyone NOT close pool?

[JohnT]

It would probably be cheaper to put up a building over the pool than to pay to heat the pool all winter. You would have to run the pump anytime the temperature was below freezing.

[Poconos]

If you have the insulating sheets I suppose you could put them in place then hold them against the pool walls with a long rope or strap or something like that. That way you wouldn't be gluing them in place. Any insulation you can apply would certainly help the heating $$$$ bottom line. Maybe once you get the first gas bill you'll change your mind. Be prepared for sticker shock.
Al