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Thread: calcium chloride and swg

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    calcium chloride and swg

    Does a swg break down cacl2 and make chlorine like is does with NaCl? Just wondering since I had to add cacl2 to bring up my CH.
    Houston, Texas
    10000 gallon pebbletec
    Salt Water Generator
    Spillover spa.
    XM8 cleaner.

  2. Back To Top    #2
    Guest

    Re: calcium chloride and swg

    I will defer to the chemists, but I believe it will break it down into the ionic forms of Ca+ and 2 CL-.

    Not sure how easily they do it though. I know NaCl(sodium) and KCl(Potassium) turn into ions really easily and are both used in water softeners.

    Not sure though that you would want Ca+ ions in your pool. Considering that CaCl is in your pool already, I wonder if it isn't already being used.

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    JasonLion's Avatar
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    May 2007
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    Re: calcium chloride and swg

    I suppose it would, though you would never want to add as much calcium chloride as it would take to run a SWG. The SWG just cares about the chloride, and doesn't really care what the other half is.

    If you really want to know the chemistry, there is a detailed explanation in this advanced chemistry topic.
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    Guest

    Re: calcium chloride and swg

    I knew I shouldn't have clicked on the link, I had to read it all.

    I now know more than I wanted to, but it was interesting to see how the SWG really works, chemically that is.

  5. Back To Top    #5

    Re: calcium chloride and swg

    Thanks. I was curious because my salt reading went from 3500 to 3700 ppm and wondered if adding the cacl2 had an effect on that reading? I only added about 10 lbs. so I doubt that would move my reading 200 ppm?
    Houston, Texas
    10000 gallon pebbletec
    Salt Water Generator
    Spillover spa.
    XM8 cleaner.

  6. Back To Top    #6
    Guest

    Re: calcium chloride and swg

    If you are using the salt meter built into your SWG it's a conductivity meter. Adding the Calcium Chlrine will increase conductivity (as will adding any chemcal that dissociates into ions) so the 'salt' reading will rise. if you are doing a chemical test for chloride ions (such as the strips or the Taylor drop count test) then that will rise also since you have added chloride ions.

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