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Thread: Liquid shock question

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    Liquid shock question

    My PB left me several gallons of liquid shock. Looks to me to be just 12.5% chorine so can I use this to chordate my pool. I typically use 10% but can adjust the quantity down some.
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    Patrick_B's Avatar
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    Re: Liquid shock question

    You certainly can, and depending on its age, it may be close to ten by now. A regular addition will tell you well enough. Perhaps use just a bit shy of what you normally put in. No biggie if it's a touch high when you test, and you'll figure it out from there. Good luck!
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    Re: Liquid shock question

    Awesome, thanks
    IG Gunite, 16' x 30', 3 1/2' - 5' deep, ~11K gal, Pebblesheen, Intelliflo VS pump, Clean and Clear 420 Filter, LED Color Lights, Taylor K2006 Test Kit.
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    Mod Squad pooldv's Avatar
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    Re: Liquid shock question

    Just for clarification to others who read this. Liquid chlorine, liquid shock and bleach are all chemically identical except for the percentage of chlorine. Bleach is usually 6%-8.25%, liquid chlorine is usually 10% and liquid shock is usually 12.5%. It varies by state.
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    Re: Liquid shock question

    I noticed HEB's Bravo came down recently by a few cents. Today was $2.94. Nice.
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    Isaac-1's Avatar
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    Re: Liquid shock question

    To add more confusion to that bleach bought from janitorial supply companies may be anything from 1% - 12.5%, many places sell the 1% junk cheap, and it tends to keep janitorial staff from going through bleach so fast, or at least so many $$$$ of it.
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    Mod Squad pooldv's Avatar
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    Re: Liquid shock question

    Good point! If there isn't a percentage listed in the bleach bottle then don't buy it. It is watered down cheap stuff.
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    Re: Liquid shock question

    Most chlorines/bleaches have a date stamp some where on the bottle, with the year and what ever day of the year it was produced. That can give you an idea of how old it is.
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    Re: Liquid shock question

    Quote Originally Posted by PAGirl View Post
    Most chlorides/bleaches have a date stamp some where on the bottle, with the year and what ever day of the year it was produced. That can give you an idea of how old it is.
    Good point. Here's an older thread that explains it: Chlorine Date Code Decoder/Easy Way to Measure Strength.
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