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Thread: Why the cloudiness ? Calcium ??

  1. Back To Top    #1

    Join Date
    Jun 2014
    covington ohio

    Why the cloudiness ? Calcium ??

    Readings are as follows
    FC 5
    Cc 0
    PH 7.5
    Cya between 40 and 50 on the tube
    Ta 120
    CH 180
    Pool looks good other than a slight haze/ cloudiness. Not extreme but not as clear as t can be. Do you think it is the calcium? But according to the TF 100 high calcium is what cause cloudiness I believe ? And it is a vinyl pool. We did have some slight green spots last week after getting behind on chlorine as we were gone. We vacuumed it all and all traces of green are gone but now the cloudiness.

    Also I don't see anywhere in pool school about routine chlorine addition. Do y'all recommend the floating chlorinaters with chlorine picks or just adding the liquid bleach as needed ?
    Dayton, Ohio
    21x42x52" 21,000 gallon AG
    New Ecco 22" sand filter with 1.5 hp pump
    14 year old used pool given to us this year, so first year in current location

  2. Back To Top    #2
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: Why the cloudiness ? Calcium ??

    The cloudiness is algae. First it is cloudy, then slimy, then green. You need to Pool School - SLAM - Shock Level And Maintain your pool to kill off the algae.

    We recommend liquid chlorine/bleach, not pucks. Pucks add CYA, unless ypu need CYA. More here, Pool School - How to Chlorinate Your Pool

    Yes, calcium can cloud a pool, but not in your case and you CH is fairly low and pH is ok. So, it is not calcium causing it.
    TFP Moderator
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