When to stop chlorinating

[chem geek]

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.

The good news is that chlorine usage will be very low once the temps hit the low 60s or below so you may only need to add chlorine once every few weeks or so, perhaps every month, if you have some sort of cover to prevent sunlight from breaking down chlorine.

Richard

[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.