Testing CC with K-2006

[Watermom]

You need to read the CC reading without letting it sit, so yours is fine.

Just use the 10mL sample instead of the 25mL. It will make your testing reagents last longer. You'll multiply the number of drops by 0.5 instead of 0.2.

[bottomcat]

Excellent. Thanks Watermom. Looks like I wasted 5 drops!

[Kidney]

Looks like Watermom agrees with my interpretation yeah!!! (And I recall reading that with the OTO test kit, one can guesstimate the CC level in the first three minutes of a TC test i.e. (?) if the solution turns dark yellow before becoming lighter there is some CC, not sure that can be used to infer how much though.)

So to get rid of CC, do we chlorinate the pool to 10 times FC level? Or is there another method?

[Watermom]

If you have a CC reading over 0.5ppm, you need to shock the pool. How high depends on your CYA level. More about the CYA/Chlorine relationship can be found here:> http://pool9.net/cl-cya/

[Kidney]

If you have a CC reading over 0.5ppm, you need to shock the pool.

Thanks Watermom, good rule of thumb! So no need to shock if below that: the weekly shocking recommendation I see here and there is really just a recommendation, not a requirement for sanitation then, correct?

[Watermom]

Thanks Watermom, good rule of thumb! So no need to shock if below that: the weekly shocking recommendation I see here and there is really just a recommendation, not a requirement for sanitation then, correct?

Correct. Who suggests weekly shocking? Pool stores and pool chemical companies who both stand to make money from people shocking their pools.