chlorine disapearing

[CarlD]

Use steam distilled water. I like a shot glass: one glass of distilled to one glass of pool water. Mix and test. Now if it reads "5" it's really 10.
Or use 2 glasses of distilled to one of pool: Now when it reads "5" it's 15.
3 glasses distilled: 20.

But it gets less accurate.

Or, if the water is much, MUCH darker yellow, it's probably well over 10. When it's orange I THINK it's around 20, and brown, around 30-35...but I am not certain.

Carl

[vinper]

Well a week later back too hardly any chlorine having to add 1 gallon of bleach a day ... CYA seemed to drop some to just under 100 . So shocked this morning with 8 gallons.....I got the drop test kit now which is alittle more difficult to use

[Watermom]

Post a complete set of current numbers since it has been awhile. Also remind us of the type of pool, volume, type of filter. How does the water look?

[vinper]

!8k gallons , IG gunite,, DE filter ,water is good, CYA 100 FC 7.0 CC 0.5 PH 7.6 ALK 110......... having to add 1 gal. bleach a day...

[Watermom]

In the evenings when you test and before you add bleach, how low has your chlorine dropped? Are you able to go from sundown one day until sunup the next day without losing more than 1ppm of chlorine?

One other thing you may not know. If you get a CYA reading of 100, it actually could be much higher than 100 since the test kit can't differentiate past that level. You need to be keeping your chlorine between 8-15 ALL the time. Since yours has dropped below that range, you could have an algae bloom that is trying to start. I think it might be wise for you to go ahead and shock your pool up to 25 and maybe squash any algae bloom that may be trying to start.

[vinper]

It was down to FC4 .05 CC this morning , from 7 yesterday so I took it to 20 before I left for work....

[vinper]

So is the plan that by shocking it enough , eventually it will retain FC ..I am getting tired of hauling all this bleach