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Thread: Zappit 73

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    tcat's Avatar
    Join Date
    May 2012
    Location
    Austin, TX
    Posts
    708

    Zappit 73

    I typically use 10% Clorox and MA to keep my pool clear. The previous owner left a large bucket of Zappit 73 that I've never used or bothered to inquire about. Can it be used to shock? I currently have no need, but just curious, rather than using several gallons of Clorox. If it can be used, approx. how much can be added to a 10K gallon pool to get it to a 20 level (from 5)?

    Also, does DE go bad? He also left a bag of DE that the paper has pretty much disintegrated over time. Not sure how old it is, my guess would be 3-4 years. I've used it once, but wondered if I should buy a new bag or use this up.
    IG pebble, 15,000 gallon
    48 PentAir DE Filter with backwash valve
    PentAir Whisperflo pump with 1hp 2-speed motor
    Aquabot 4WD, Poolskim
    Intermatic Dual Timeclock with freezeguard
    DIY chlorine feed
    BBB

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    30,084

    Re: Zappit 73

    Never heard of it. What does it list as ingredients?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    tcat's Avatar
    Join Date
    May 2012
    Location
    Austin, TX
    Posts
    708
    IG pebble, 15,000 gallon
    48 PentAir DE Filter with backwash valve
    PentAir Whisperflo pump with 1hp 2-speed motor
    Aquabot 4WD, Poolskim
    Intermatic Dual Timeclock with freezeguard
    DIY chlorine feed
    BBB

  4. Back To Top    #4

    Join Date
    Feb 2008
    Location
    Denton, TX
    Posts
    5,061

    Re: Zappit 73

    I looked it up. It is simply a 73% calcium hypochlorite compound in granular form.

    You can use it as long as you keep an eye on your calcium hardness since calcium hypochlorite can raise CH levels very quickly.

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