To close or not to close ?

[DBC]

I am watching for a reply on this also. I live SW of Atlanta very similar weather. I installed IG this past spring with SWG. I put a Freeze switch on, have set at 38 degrees and plan to run pump normally 2 hours a day with Solid safety cover with mesh drains. Neighbor has had good success that way but with no cover.

[larry2338]

Here in Dothan AL, 16x32 inground vinyl, we leave ours open. Only thing I do is turn the pump on about 10:00 at night when it's supposed to get below 32 degrees, then turn it off in the morning when temps warm up. Pump then runs about 5 hours/day on the timer.