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Thread: Test Question - CL with Ozone

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    Test Question - CL with Ozone

    I drank the PB Kool Aid and had the ozone system installed - I have done my monday morning research and am looking at installing a SWCG next year - In the meantime I had installed a tab feeder. The PB installed the chlorinator downstream of the ozone generator so all of the gas from the ozone constantly air locked the feeder. I am going to re-plumb a few things and get it installed before the ozone feed. As for now - I am putting my tabs in the skimmer for a few weeks until I get the feeder issue worked out - I am running my pump 24/7.

    With the ozone - I was told to keep my CL residual around 1ppm. Is that correct?

    The following are my test results from this am

    Free CL = 2.68
    Total CL = 2.79
    Alkalinity = 92
    Hardness = 201
    CYA = 42

    Water looks great. Any suggestions on my results
    45000 IG unite pool with Jandy LRZ Heater, Polaris 280, 1.5 HP pump, Jandy DE Filter

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Test Question - CL with Ozone

    The FC level required varies dramatically with the CYA level. Lower CYA levels mean that lower FC levels are fine. Higher CYA levels require higher FC levels. With CYA around 40, I recommend keeping FC at 3 or higher. Meanwhile, the use of a tablet feeder means your CYA level is constantly going up. CYA won't go up very quickly, but unless you have a lot of water replacement it will eventually high enough to be a problem.

    I would simply turn off the ozone system unless you are having a lot of people swimming (a pool party for example). Ozone increases chlorine usage and really doesn't help anything except when you have lots of people swimming (and thus lots of extra organic waste that needs to be oxidized).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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