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Thread: shock

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    Whats the difference between "Sodium dichloro-s-triazinetrione DIHYDRATE" and "Sodium dichloro-s-triazinetrione HYDRATE" ???
    the first i bougth in leslies and the second in costco.
    wich is better?
    wich should i continue with?
    should i use different dosages/
    Thanks, Aaron

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: shock

    Welcome to TFP!

    Those are both exactly the same thing, which we call dichlor around here. Dichlor has a couple of disadvantages. It is constantly adding CYA, which builds up and eventually gets too high. And it is very acidic, lowering the PH significantly, which you need to compensate for by adding soda ash every time you use dichlor.

    Also, "shock" is actually a process, not a product. See the article on shocking in Pool School.
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    Re: shock

    thanks. Aaron

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