To close or not to close ?

[rtpatter]

I have a 23k inground vinly in B'ham AL. I have a mesh loop loc cover which is used as much for child saftey as for keeping debris out. Last year I turned everything off and drained the filter. The temp's here rarely go below freezing. This year I was considering putting the cover on and leaving everything else as is and maybe running the filter for like an hour a week just for circulation.

Would I be better just to completely close it all down or put the cover on and periodically run the filter from time to time. What are the pro's and con's of each.

Thanks,
Russ