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Thread: When to use granulated chlorine?

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    When to use granulated chlorine?

    I just opened what I thought was going to be a bucket of chlorine tablets, and there are granules instead. I think this was part of 'buy this get that' offer from the pool store -- I don't have the receipt so am stuck with the stuff.

    When and how do I use this? Dang, learning the hard way....

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    Mod Squad JohnT's Avatar
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    Re: When to use granulated chlorine?

    What is the active incredient?
    TFP Moderator
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    Re: When to use granulated chlorine?

    Sodium dichloro-triazinetrione dihydrate

    It's made by REGAL, and the product is called Dy-chlor II (roman number '2')

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    duraleigh's Avatar
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    Re: When to use granulated chlorine?

    You'll still be able to use it, perhaps sparingly.

    Dichlor (we abreviate it) has a ton of CYA in it. That's great if you have none in your pool but that's terrible if you already have enough.

    Can you provide a set of test results that includes your CYA reading?
    Dave S. - Forum owner
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    Re: When to use granulated chlorine?

    CYA reading will have to wait a week. I don't have the printout from the pool store and won't go again til next weekend. I'll be back...

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    Re: When to use granulated chlorine?

    For every 10ppm FC from dichlor, you get about 9ppm CYA. That's why you don't want to use it in the pool unless you need to raise your CYA.
    --paulr
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