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Thread: how long are reagents good for?

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    how long are reagents good for?

    Using TF100 test kit from last year i was getting CYA reading of around 40, when i ran out of reagents i had my water tested at Leslie's and got a CYA reading of 30. I ordered new reagents for the test kit and the first test with the reagents was CYA of 65.

    All readings were within 5 days.

    Should i assume 65 is the right number?

    Did no draining of pool or added any cherms other than bleach.

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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: how long are reagents good for?

    The CYA reagents are inert, so should last a long time ... in fact most of the reagents "should" last a couple years if they are stored in a cool dark place.

    {I have a 3 year old TF100, where all the tests still give basically the same results as my 3 month old TF100}
    Jason, TFP Moderator
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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: how long are reagents good for?

    Yes, you should assume that it's whatever you tested it at.
    Dave J. TFP Moderator
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    Re: how long are reagents good for?

    Forget the pool store result, was the lighting the same during both of your tests? Did you test in indirect sunlight..?
    [ Vogue Vectra 24' AG | Hard plumb: Hayward Power-Flo Matrix 1HP 2-speed, 27" sand filter & Pentair MiniMax 100 NG | Taylor K-2006 | Central IL ]
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