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Thread: Algae & Cloudy Water

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    Join Date
    Jun 2008
    Location
    Avon Park, FL
    Posts
    15

    Algae & Cloudy Water

    I live in Florida and with all the rain lately and working 12 hour shifts my pools had some algae. I have gotten it to clear some but can't quite get it beat. I have an Intex 16X42 pool, pumps 800gph. My readings from Pinch a Penny yesterday were the following:

    FC-5.0
    pH-7.8
    Alkalinity-120
    Calcium-200
    Stabilizer-95

    I'm not sure what quite to do. I have been shutting the pump off every 3 hours and cleaning the filter and brushing the pool to stir everything up. Is there anything else I can do? It looks a lot better but I want it clear again. It is also a little cloudy. I also shocked it this morning.

    Thanks for the help.
    15200 Gallon, Vinyl, Cartridge Filter 100 GPM, SWG

  2. Back To Top    #2
    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: Algae & Cloudy Water

    With your stabilizer (CYA) level so high it is going to take extreme amounts of chlorine to kill the algae. It would be much easier if you lowered your CYA level first. Unfortunately, the only practical way to lower CYA is to replace water.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    Jun 2008
    Location
    Avon Park, FL
    Posts
    15

    Re: Algae & Cloudy Water

    How often should I shock it then since my CYA is so high? My pool is about 4000 gallons.
    15200 Gallon, Vinyl, Cartridge Filter 100 GPM, SWG

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Algae & Cloudy Water

    First, you should take a look at the FC/CYA chart, which shows that you need to bring FC up to about 37 to fight algae with your CYA level.

    Then you should read this article on fighting algae.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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