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Thread: How to defeat this

  1. Back To Top    #1

    Join Date
    Feb 2018
    Location
    Tampa, FL
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    18

    How to defeat this

    So my pool is severely pitted, and now Iím coming down from my second SLAM in a month, and I have these spots appearing again. They do not brush off but they do go away with a SLAM and then return. A chlorine puck will make them disappear for a while too. My levels are

    10.5 FC
    0 CC
    7.6 pH
    80 TA
    300 CH
    40 CYA

    My pool needs resurfacing but itís not in the budget for this year. I have passed the SLAM criteria each time and even went up to mustard levels for 24 hours - but my CC never gets higher 0.5, even at mustard levels. While Iím SLAMing, I brush and brush and brush. All fixtures are out of the pool.

    My pool also has metal issues and I donít know where the metal is coming from ó I feel like Iím somehow missing some essential element of pool care, where are all of these things coming from?
    Attached Images Attached Images
    Tampa, FL
    10,000 gallons, IG, plaster, cartridge Posi-Flo 2 PTM50, on city water

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    May 2010
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    Re: How to defeat this

    Could be black algae, have you scrapped some off and smeared it on a piece of paper?
    Pool School - Black Algae
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  3. Back To Top    #3

    Join Date
    Feb 2018
    Location
    Tampa, FL
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    Re: How to defeat this

    So I can’t figure out how to scrape some off. Nothing comes off when I scrape with my fingernail. I’m going to try the black algae thing anyways, since my FC is already elevated. The pool is safe to swim in until SLAM levels, right?
    Tampa, FL
    10,000 gallons, IG, plaster, cartridge Posi-Flo 2 PTM50, on city water

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: How to defeat this

    Yes, safe to swim up to shock level FC (honestly it is safe even higher than that ... a public indoor pool is WAY more harsh due to lack of CYA)
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5

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    cfherrman's Avatar
    Join Date
    May 2017
    Location
    Hays, Kansas
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    1,725

    Re: How to defeat this

    Metal as in copper or iron?

    Could be in fill water
    Casey
    Intex 24' x 52" closed for winter 2018, 2 Main Drains, 1 Skimmer, 1 Return, PVC
    1/2 HP Intex Pump 633T w/ Taeglus TA-40 175 lb 19.5" Sand Filter, Auqabot Extreme Robot
    TF-50 and Taylor 2006 Test Kits, Quality Well Water, Fleck 5800SXT Water Softener

  6. Back To Top    #6

    Join Date
    Apr 2018
    Location
    Bangor Maine
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    436

    Re: How to defeat this

    I’m nit sold that it’s metals, it appears cloudy to my eye.

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