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Thread: Combined Chlorine

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    Join Date
    May 2007
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    Fayetteville, Arkansas
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    Combined Chlorine

    Would someone in the know post a little about CC levels or lack of. My tests are clear before I
    add the reagent, that is after I do the test for FC.

    What about them? I understand CC is where the strong chlorine smell would come from. If my FC is
    3.0 and my CC is 0 -- is that a good thing?

    Thanks - now, out to the oasis and a beverage !!
    20x40 30,000 gal IG Liner, Pentair II Sand

  2. Back To Top    #2

    Join Date
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    yes, it is a very good thing
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    14,000 gallon, in ground, plaster, free form, play pool.
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  3. Back To Top    #3

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    New Jersey
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    Yes that is perfect....enjoy the water!
    14 x 32 Fiberglass Pool 10K gal. Hayward Pump and Sand Filter. Autopilot SWG Dig 48 and Heat Siphon 3.25sx Heat Pump.

    The Pool Calculator
    Chlorine/CYA Chart by Chemgeek

  4. Back To Top    #4
    MikeInTN's Avatar
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    Re: Combined Chlorine

    Quote Originally Posted by Rangerman
    Would someone in the know post a little about CC levels or lack of. My tests are clear before I
    add the reagent, that is after I do the test for FC.

    What about them? I understand CC is where the strong chlorine smell would come from. If my FC is
    3.0 and my CC is 0 -- is that a good thing?

    Thanks - now, out to the oasis and a beverage !!
    Here's a quote from a learned individual:

    "We measure chlorine in our test kits. Sometimes they test "chlorine". This is actually Total Chlorine--the TC you asked about. Our better test kits test for Free Chlorine (FC) which is the stuff that does all those good things. The better tests also test for Combined Chlorine or Combined Chloramines--CC. This is the used-up chlorine that smells like disinfectant and irritates eyes. Its presence means you are metaboliziing something."

    So, as the other folks have said, a CC reading of 0 is a very good thing.
    24' x 52" AGP - approx 13,500 gallons
    Pentair Optiflo 1 hp/2sp pump w/ Swimpro Voyager 150 sq ft cartridge filter
    Intex 8110 SWCG
    "Fear the Schnauz!"

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