Guess I might be cheating. I live in deep south Texas so we only got below freezing a handfull of times and had one 1/2" ice storm 2 weeks ago.
I drug the solar cover off my pool and was pretty happy. BBB kept it nice through the down time. I would add 2 cups of bleach maybe every 3 to 4 weeks, and ran the pump 2 hours in the a.m. and 2 in the p.m.
Once I vaccumed the burned sugar cane and few pecan shells from birds I only found one uh oh. I have one piece of nutgrass that came through. So when it gets warm enough I will yank and patch it.
Please show me how yours turned out after the winter. Wondering if this was a fluke beings this was my first year owning a pool, and using BBB.
Thanks to all