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Thread: slightly cloudy pool

  1. Back To Top    #1

    Join Date
    Sep 2015
    Location
    Havertown
    Posts
    17

    slightly cloudy pool

    I am using the BBB method for pool balancing. My water was crystal clear last week and balanced well. I didn't test for chlorine for several days and now my pool is getting a little cloudy. I also have a skimmer sock which has some mild algae on there now. Yesterday, the FC was zero and then I shocked it with 50 ounces of bleach (6%). Should I get the FC level to higher than 8? Today, the FC is 1.0. I'm using the Poolmaster 5 way test kit.

    Above ground
    4500 gallon

    FC 1.0
    pH 7.8
    TA 110
    CYA 50

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,968

    Re: slightly cloudy pool

    Hello and welcome to TFP! Well, your FC is extremely low for your pool with a CYA of 50. Your FC should never be below 4. Now that it has, I suspect you have an algae bloom starting which is why it's cloudy. I would recommend first lowering your pH to about 7.2, then taking your FC up to the SLAM level of "20" and perform a "SLAM" (link below). Maintain that FC of 20 until you pass all3 SLAM criteria. Use regular bleach as your sanitizer, and if you have any chlorine tabs/pucks in use, remove them.

    I suspect however that your Poolmaster 5-Way kit won't test FC over 5ppm. If not, you'll need to order the FAS-DPD test product as seen HERE.

    Let us know if you have any questions. Have a nice day.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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  3. Back To Top    #3

    Join Date
    Sep 2015
    Location
    Havertown
    Posts
    17

    Re: slightly cloudy pool

    Thank you!

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