A little cloudy water

lmisko

0
Jul 22, 2016
74
Twin Cities, MN
Its not terrible. I can see the bottom. But there is just a haze. It is very evident at night when the lights are on. With my most recent test:

FC 8
CC 1
pH 7.6
TA 250
CH 250
CYA ~75
Temp 59 F

Here are my (very) rookie thoughts feel free to correct me if I am wrong...

We have an autocover and out installer said we need to make sure we "gas off" the pool otherwise it might get cloudy. We keep it closed during the day while people are at work. I open it up for at least several hours each night when I am testing and vacuuming etc...Is that enough time?

My sand filter pressure is up to 13psi from 10psi so I am due for a backwashing. I will do that this afternoon.

There is a little something the chlorine is fighting in the pool due to the 1.0 CC and that is causing it.

Or...all of the above lol. Thanks for any tips you may have!
 
I,

I like your "all of the above" answer..

I suggest that you run an OCLT test just to confirm if something is growing in the pool. Although, at less than 60 degrees, I doubt it..

Specific instructions... Pool School - Perform the Overnight FC Loss Test (OCLT)

I would run the test with the cover open and then also see what your CC reads in the morning.

Thanks for posting,

Jim R.
 
An over night chlorine loss test is the best way to see if anything is still active in the pool. The good part is you have an auto cover that I imagine block outs 100% of sunlight, which means you don't need to get up before the sun to get an accurate reading.
 
So I did the test last night. Went to bed with

FC 8
CC .5 (it was so faint that less than 1 drop would have cleared the pink I bet)

Woke up with

FC 7.5
CC 0.5

The cover was open all night. I think the water looked a little better and it didn't have that "chlorine" smell anymore either.

So can I crank the heater and get my boys swimming this weekend? I think they will mutiny if I say no lol.
 
So, while so far the testing and opening process has been relatively painless (knock on wood) I realize that increasing the temp from 60 to 78 degrees will change the dynamics a bit. Is there anything else I should be aware of? Like are any of my various chemical levels more sensitive at higher temps? Does that make sense?
 
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