Ozone vs Combined Chlorine

[Texas Cowboy]

I have been reading and studying this awesome site for some time. I thought I read somwhere that Ozone would take out CC.
Please let me know how to take out CC.
Thanks so much.

 

[JamesW]

Reactions of Ozone With Monochloramine: Haag and Hoigné (1984) also have shown that ozone slowly oxidizes monochloramine to produce nitrate and chloride ions according to the following equation:
NH₂Cl + 3O₃ --> 2H⁺ + NO₃^- + Cl ^- + 3O₂
http://www.absoluteozone.com/assets/ozone_for_municipal_spa_and_pool_treatment.pdf

Ozone will slowly oxidize chloramines. However, your ozonator uses UV to generate the ozone, which makes very little actual ozone.

To produce enough ozone, you really need corona discharge.

In any case, ozone isn’t a good choice for outdoor residential pools. Ozone works best for high use indoor pools. Even then, the system is a lot more complicated than just injecting ozone into the line.

For an outdoor residential pool, UV or ozone is usually a waste of money and is usually counterproductive.

What CC levels are you getting?

 

[Texas Cowboy]

Thanks for the info.
CC-.2

 

[Donldson]

0.2 CC is nothing to be concerned about. Does it regularly rise above 0.5? That is where we start to get concerned.

 

[Texas Cowboy]

No its been staying at .2 for a long time.
I just found that i may not have been getting the correct result in FC and CC.
Turned off the speedstir and light and there was still some pink in the sample after i thought it was clear, added one more drop of R-0871 and then did my CC test and CC is at 0.

 

[JamesW]

CC at 0.2 or 0.5 can be ignored.