How to test CC?

[Kelleyaynn]

How do you test for CC? I have a Taylor-100 test kit, and there is nothing in there about testing for CC. I've tried to search the forums for an answer, but haven't had any luck. I think I must be missing something.

Thanks,

Kelley

 

[duraleigh]

Look at your test kit again...I don't think there is a Taylor-100.

 

[JasonLion]

There are several different chlorine tests, OTO (drops turn the sample some shade of yellow compared to a color chart), DPD (drops turn the sample some shade of red compared to a color chart), and FAS-DPD (powder turns the sample pink, count drops till clear). The OTO test does not show CC. The DPD test reads out TC and FC from which you can determine CC. The FAS-DPD test reads CC directly.

 

[Davsmth41]

DPD is far more frustrating to get a close to accurate CC lvl. My opinion. FAS method is a dream...

 

[Kelleyaynn]

Look at your test kit again...I don't think there is a Taylor-100.

Lost my head. It is a TF-100.

 

[duraleigh]

It's under the Chlorine test in the instructions.....#5

Chlorine Drop test - If you need to......1) measure Chlorine levels accurately or 2) higher than 5ppm or 3) test for Combined Chloramines…perform the Chlorine Drop Test. (FAS/DPD)
1. Rinse and fill the “Chlorine only” graduated cylinder to the 10mL mark
2. Add ONE heaping scoop of the R-870 powder and swirl to mix. (It may not all dissolve….don’t worry) The solution will turn pink. (unless you have no chlorine)
3. Next, carefully add R-871 solution one drop at a time. Count each drop and swirl until the solution turns back to clear. Multiply the number of drops you added times .5 (14 drops X .5 = 7ppm)
4. Record your results as FC (free chlorine)
5. To test for Combined Chloramines, add 5 drops of R-0003 to the solution and swirl. If it remains clear, you have no CC’s. If it returns back to pink, add R-0871 as before, counting and swirling between each drop. Once the solution returns clear, multiply the added drops times .5 again…..this will be your CC reading. Record it. The total of FC and CC should be recorded as TC (total chlorine)

 

[gboulton]

Lost my head. It is a TF-100.

In that case, the CC test is a pretty simple task.

1) Do your FC test with the R-0870 DPD Powder as you normally would, adding R-0871 to bring the solution clear, as normal.
2) Add 5 drops of R-0003 (Yellow cap) to the solution. Swirl to mix.
3) If the solution remains clear, your CC level is 0.
4) If the solution turns pink, add R-0871 again, counting drops as you do for the FC test. Each drop is .5ppm, just like FC
5) A CC reading of 1 (2 drops) or above is cause for concern, come talk to your friendly TFP folks and read Pool School.

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Woooops. Sorry, Dave! It didn't warn me another post had been made.

 

[Kelleyaynn]

Thanks for the help. I was looking at the headings of the tests, not the details, so I missed it.