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Thread: Green, Cloudy Pool

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    Join Date
    May 2016

    Green, Cloudy Pool


    I am having trouble with my pool being green and cloudy. I have shocked it numerous times and it seems not to do anything. I was told at the pool store that my chlorine levels were very high and the ph was good. They recommended flock. So I am going to brush the pool when I get home and add the flock to the water so hopefully I can then see the bottom in the next couple of days and vacuum when it all falls to the bottom. I am concerned that this will not work since all of the other things we have tried so far have yet to work. Do you have any other suggestions for what I can do to clear up this problem?

    My pool has been green for a couple of weeks now. We have been putting chlorine in it regularly as well as shocking it. When we took a sample up to the pool store they said our chlorine level was very high and the ph was good, but the pool is still green. They recommended putting a double dose of flock in it and then vacuuming when it all falls to the bottom. I am curious about what you guys recommend. Thanks!
    DE Flilter

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    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Cartersville Ga

    Re: Green, Cloudy Pool

    Start with this:
    Pool School - Defeating Algae

    And pick up a test kit. I recommend a TF-100 from Here is a link.

    Since you are going to need to SLaM you might as well add the XL option.
    Bob - INTEX 12x24 owner, 'New to me' Kreepy Krauly Sand Shark, Test kit: TF-100 w/Speed Stir

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    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: Green, Cloudy Pool

    I have combined your two posts for clarity. We recommend you get one of our two suggested test kits, go to Pool School and learn how to SLAM your pool, and stay out of the pool store! Floc is NOT your answer. Can you at least list your pool store test results for us at this point? Welcome.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  4. Back To Top    #4

    Join Date
    May 2016

    Re: Green, Cloudy Pool

    If you floc now, you'll get rid of a lot of the cloudiness for a very short while. Floc won't kill your algae, so it will grow back and make your pool cloudy again.

    Your problem is likely high CYA (cyanuric acid) that is reducing the ability of your chrloine to kill your algae. Listing your test results, including CYA, will help.

    What types of chlorine have you been putting into your pool? Adding dichlor (a common shock) or trichlor (the common form of the 3" discs) could be counterproductive.
    18k plaster IG pool - cartridge filter - Pentair Superflo VS - Taylor K-2006
    Dolphin Nautilus Robotic pool cleaner

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