Chlorine loss through out the day

[damato300x7]

So I usually lose between 1 - 5 ppm of chlorine in any given day depending on sun and temp, over night I only lose max of .5 ppm. Is this normal? We do not keep our pool covered although we do have a solar cover just never use it, and will using the solar cover slow down the chlorine loss?

Water is crystal clear and not a sign of algae. I usually add my chlorine in the evening when I get home from work at around 530 pm. I take my Chlorine up to 6 ppm and by the time I get home from work the next day it is usually down to 1.5 - 2 ppm. I know this is low but I have no way of adding in the middle of the day.

Here is my most recent full set of test

FC - 6
CC - 0
PH - 7.6
TA - 130
CYA - 35

Thanks

 

[nlindelldc]

For your CYA of 40 (rounding up), you should target a FC of 5 but never let it drop past 3. Average FC loss is 2-3 ppm per day, so you seem a bit much. I would perform an OCLT if you haven't already.

And since you're adding once per day, maybe shoot for FC of 7 or 8 to be safe.

 

[damato300x7]

Yeah I have done OCLT many times and the most I lose over nigh is 1 ppm and most nights it was only .5. The last time I did an OCLT was Monday because were away all weekend and had someone adding 2 quarts of chlorine for us per day while we were gone. Low and behold when I tested Monday morning we only lost .5 ppm. Would adding my solar cover slow down the rate of loss throughout the day?

Thanks

 

[borjis]

Would adding my solar cover slow down the rate of loss throughout the day?

If the pool is exposed to the sun, the cover will certainly help if it's NOT a clear one. (blue/black/silver etc... to block uv)

I have mine covered on weekdays and might uncover it to swim in the evening.

Right now, with no swimming this week and solar cover on (weather got cloudy/cold) I lose 1 ppm every three days.