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Thread: Water is foggy blue/!

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    Water is foggy blue/!


    I've been battling my pool all summer long. I have an Intex rectangular pool 12 x 24 (roughly 8,500 gallons). I recently purchased the TF-100 test kit and found out that I had way too much CYA which apparently helped contribute to the water not being clear. Several days ago, I replaced a good portion of the water to get it down to about 50 ppm, but I'm still having issues. About a day or so ago, I put in the appropriate amount of "no more green" (Acid Dihydrate, diammonium sulfate) to help with the algae. Here are my numbers based on tests this morning:

    CYA 50

    Chlorine Drop Test
    Free Chlorine 2ppm
    CC 5.5ppm

    TA 130

    Taylor Test
    Total Chlorine 1.5
    PH 7.2

    Any help would be greatly appreciated!

    One of the other things is that I keep having to clean my cartridge filter, which I didn't have to do last year. I have a 3/4 hp pump with a 25 sq ft cartridge filter.


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    TFP Guide
    YippeeSkippy's Avatar
    Join Date
    Jan 2012
    'burbs of Augusta, Georgia

    Re: Water is foggy blue/!

    Ouch. You're gonna have to burn off that "No More Green" with regular liquid chlorine... perhaps lots of it.. and then probably perform a SLAM procedure.

    Liquid chlorine (aka bleach) is all you needed. We don't recommend the use of that product in pools.

    Your cartridge needs cleaning because your pool has algae. Its catching it, and it has to be washed away so the cartridges can catch more of it.
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    Re: Water is foggy blue/!

    Thank you for the thoughtful and timely reply. I'll certainly steer clear of that product in the future, but just out of curiosity, what is the issue with it?



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    AimeeH's Avatar
    Join Date
    Apr 2012
    Columbia SC

    Re: Water is foggy blue/!

    Hi there

    Yippee is right on, you need to follow the SLAM process. The key is keeping your FC at shock level until you pass all three tests. Link below

    Pool School - SLAM - Shock Level And Maintain

    If you want some answers on the product you used, you might like this thread. Diammonium Sulfate, YELLOW OUT
    18*36*23 true "L" vinyl IG 29,000 gallons. SWG. TF-100 test kit.

  5. Back To Top    #5
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Water is foggy blue/!

    CYA doesn't make water cloudy, algae does. It is important to maintain FC above minimum for your CYA, FC/CYA Chart, at all times to keep the pool sanitary and prevent person to person disease transmission, especially in kids. It will also prevent algae from growing. The algaecide will not clear up your pool. Only chlorine will. To kill the algae follow this process, SLAM
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