Chlorine loss relative to water temp

[BTK2]

My pool gets all day sun. Sun up to sun down. With my water temp around 86-88F and the pool covered, will I get chlorine loss due to just the water being at this temp and cover being exposed to sunlight?

 

[mknauss]

Yes. The cover reduces the FC loss some, but not by much.

 

[TinFoilHat]

But then you have a warmer pool. Hmm, chlorine, warmer pool, chlorine, warmer pool....

 

[BTK2]

So losing 1.5 Ppm FC with my SWG at 60% and my pool covered, and a water temp of 87F is normal?
That is in a 20 hour span.
Just wondering. New pool owner here

 

[mknauss]

I assume that is FC usage per day? How much FC per day is your SWCG creating? I would think 2-3 ppm FC usage per day by the pool would be normal.

 

[Newdude]

So losing 1.5 Ppm FC with my SWG at 60% and my pool covered, and a water temp of 87F is normal?
That is in a 20 hour span.

That's -5 and way too much loss for using a cover.

Remove the sun from the equation and Overnight Chlorine Loss Test. If you lose FC overnight, it's SLAM Process time.

 

[BTK2]

That's -5 and way too much loss for using a cover.

Remove the sun from the equation and Overnight Chlorine Loss Test. If you lose FC overnight, it's SLAM Process time.

with that said and my water temp being what it is at 87F. I shouldn’t have any FC loss overnight?

 

[Newdude]

I shouldn’t have any FC loss overnight?

No UV, bather load or algae equals no loss.