Closing chemistry recommendation

[Watermom]

you need to wait until water temp stays below 60.

And, even below 60 degrees is no guarantee that algae won't grow. Somewhere here on the forum is a picture posted by Poconos (a former moderator) where he has ice on his pool with algae growing below it. I'll see if I can find it but it was a long time ago so probably won't be able to.