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Thread: Newbie with algecide OD

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    Newbie with algecide OD

    My father in law just poured 1 gallon of algecide in our approx. 35,000 gallon IG plaster pool. The recommended dose was 32 oz ( he didn't bother to read the instructions) and now we have some foaming. We tested the pool and all of the levels are fine but now Im concerned about people using it. Is 4x the dosage in a pool this size dangerous? Some posts i have read say continue to use it and the algecide level will decrease from water splashing out, some say we need to drain it(id rather not) and others say to shid appreciate any advice. I just want to make sure we do the right thing for pool and our r families health.

    Came from Wal-Mart. Product name is Aqua Chem. Algaecide 50%.Ingredients: Allkyl (c-67% C, 25% C, 7% C, 1%).dimethyl benzyl ammonium chloride 50.0%.Other ingredients 50.0%.Total 100.0%.

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    Mod Squad JohnT's Avatar
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    Re: Newbie with algecide OD

    Welcome to TFP!

    Raise and hold your chlorine level a little and run your pump around the clock and it will take care of the algaecide.

    In the future, steer clear of algaecides that don't start with the word "poly".
    TFP Moderator
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    linen's Avatar
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    Re: Newbie with algecide OD

    Welcome to tfp, pinksuede

    I would stay away from algaecides entirely with two exceptions (that I can think of):
    • 1. Performing an ascorbic acid treatment (unusual)
      2. When winterizing (pool owner preference...I prefer not too)
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Newbie with algecide OD

    So glad we don't have to drain it how many days should we keep the chlorine elevated and pump running?

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    linen's Avatar
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    Re: Newbie with algecide OD

    I would go until the foaming is gone.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Newbie with algecide OD

    Quote Originally Posted by JohnT
    In the future, steer clear of algaecides that don't start with the word "poly".
    What does the word "Poly" indicate as far as the product ??
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    Richard320's Avatar
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    Re: Newbie with algecide OD

    Quote Originally Posted by kiss4afrog
    What does the word "Poly" indicate as far as the product ??
    Poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride]

    pool-school/swimming_pool_definitions_abbreviations
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