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Thread: Cloudy Water Indoor Pool

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    Join Date
    Aug 2015
    Location
    Jeffeson, MA
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    64

    Cloudy Water Indoor Pool

    I have a commercial, indoor, 24,000 gallon, heated, gunite pool in Massachusetts. The past several days we have been having cloudy water with a green tint to it and can't seem to fix it. It started with one of my employees forgetting to shock when the levels were very low (around 1ppm) of FC and since then we have shocked 2-3 times with our normal sodium hypochlorite shock (bringing it up over 9ppm a few times) and I have been leaving it uncovered to help and it does not seem to be changing. All of our other readings remain normal. We sanitize with bromine via an inline automatic brominator. The chlorine/bromine levels seem to be dropping faster than usual as well. I am just giving you the chlorine numbers from this morning as I am not in front of the testing kit so I can't see the bromine equivalent, but they have all been in range. The FC levels were at 4 last night and have since dropped down to 3 this morning. I have used clarifier several times over the past several days and it does not seem to be helping either. We do have a high bather load daily so I tend to run my numbers slightly higher than 3ppm FC and 4-6ppm bromine, but it is like that all the time and usually the water is crystal clear by keeping all the levels in range and shocking 1-2 times weekly. We use the forum recommended taylor testing kit as well. I thought at one point it may have been my filter or circulation but our turnover rate is about 4.5 hours and that has not changed either. I also checked the brominator to see if it was blocked, but it appears to be working fine as well. Any help on what could be causing it and why it seems I am going through so much chlorine/bromine lately would be helpful?

    FC = 3
    CC = .2
    TC = 3.2
    pH = 7.6
    TA = 100
    CH = 220
    CYA = 0 (code in MA for indoors)

    24,000 gallon indoor gunite pool
    hayward 500lb high-rate sand filter
    hayward VAS pump

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    Patrick_B's Avatar
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    Jun 2011
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    Re: Cloudy Water Indoor Pool

    Even though indoors, does the pool get a good deal of Sun through skylights, or Windows around/overhead?
    TFP Moderator
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    Aug 2015
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    Jeffeson, MA
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    Re: Cloudy Water Indoor Pool

    it has 3 skylights, not a lot of sun, especially in MA right now. Are you thinking it could be algae? Should I try and shock for algae?
    thanks
    Pool install 6/2015, 27,000 gal in-ground, vinyl, 16 mil clear solar cover
    Hayward Pro Series 300lb high-rate sand filter
    Hayward Tri-Star 2-speed Model# SP3215EE pump
    Hayward Goldline Aqua Plus Salt generator with Hayward T-cell-15 for up to 40,000 gal
    Aquacomfort electric heat pump model# ACT1100

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    Patrick_B's Avatar
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    Jun 2011
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    Midland TX
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    Re: Cloudy Water Indoor Pool

    You said it got low after not Chlorinating for a while, correct? And its cloudy to boot. I would say yes, based on these circumstances, coupled with sunlight, and heavy bather load.

    The Answer is killing the Algae with Elevated Sanitizer, and stop using the clarifiers now. They dont always work, and can make the cloudiness worse as well.

    We suggest a SLAM to kill Algae, but this is a bit different being occupied and regulated. Let us know if you can shut this down for a short time, and others will weigh in as well.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
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    JoyfulNoise's Avatar
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    May 2015
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    Re: Cloudy Water Indoor Pool

    Quote Originally Posted by dmccarthy View Post
    We sanitize with bromine via an inline automatic brominator.
    What EXACTLY are you adding to the pool here - name of product and listed components, please?
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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