When to stop chlorinating

[CarlD]

Algae can still survive and grow slowly even in ice water. CarlD has a picture of that somewhere on this forum though I can't seem to find it.

Richard

I do?

"Oldtimers" must be setting in because I have no memory of it. Nor have I had it in my pool.

[chem geek]

Sorry Carl. As watermom said, it was Poconos (Al) that had a post somewhere showing a picture of algae under surface ice. I can't seem to find that post, however.