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Thread: When to start shocking?

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    Join Date
    May 2017
    Location
    Norfolk/Virginia
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    Question When to start shocking?

    Hello all! Long time visitor and follower of the BBB technique . I'm doing my 4th annual startup and I always wondered "when should I start adding chlorine to be the most effective?" I am running filter 24/7 , cleaning the filter daily and have been removing debris since I can now somewhat see the bottom. It's still a cloudy very light green. Should I continue filtering and cleaning until clear, then balance/SLAM it or will balance/SLAM now speed the process. My thinking is "why dump a bunch of chlorine in now if filter is still pulling a bunch of contaminates out?"
    18x33 AGP 52"
    Waterway Pro Clean 200 SqFt Cartridge Filter
    Hayward PowerFlo Matrix 1-1/2 HP Pump
    Pentair Rainbow 320 In Line Chlorine Feeder

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: When to start shocking?

    Welcome to the forum

    SLAM now. You will speed the process by a ton. What are your test results before you start?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    May 2017
    Location
    Norfolk/Virginia
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    Re: When to start shocking?

    Quote Originally Posted by duraleigh View Post
    Welcome to the forum

    SLAM now. You will speed the process by a ton. What are your test results before you start?
    I need to check. I haven't run test yet as I just started and wanted to at least get most of the gunk out of there. Thanks! I'll be back!
    18x33 AGP 52"
    Waterway Pro Clean 200 SqFt Cartridge Filter
    Hayward PowerFlo Matrix 1-1/2 HP Pump
    Pentair Rainbow 320 In Line Chlorine Feeder

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    duraleigh's Avatar
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    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,962

    Re: When to start shocking?

    Your pH needs to be in the 7's, CYA=30 is ideal
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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