When to stop chlorinating

[BarryY]

I've been using bleach only for a few years now, but my question is this: Do I need to keep the chlorine levels up all winter long? I live in the Dallas area, and right now my water temp is around 77 degrees. Is there a point at which the temp drops low enough to where algae won't grow and chlorinating is not necessary?

[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

[BarryY]

OK, thanks for the quick response. I don't have a cover, so I guess I'll just have to keep an eye on it.

[Watermom]

Actually, it is Al (Poconos) who had the picture of algae under ice somewhere on the forum. I just did a little searching but couldn't find it. Maybe Al knows where it is.

[aylad]

I'm near Shreveport....you'll find that once the water temps get down into the 60s or so, your chlorine consumption will drastically fall, but I still add a bottle or two every week to 10 days (30Kgal IG)

Janet

[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.