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Thread: R-0870 DPD Powder Expired?

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    Join Date
    May 2015
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    Mount Cheaha Alabama
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    R-0870 DPD Powder Expired?

    Opened up last week and just did a normal Cal-hypo shock.
    Finally got some time today to run a full test.
    The K-1000 kit color scale was showing >10ppm FC.
    DPD test yielding 3.5ppm consistently with what looks like fine pepper particles floating in the sample tube. Granules look like a salt&pepper mix

    Chemical kit has always been stored inside in a closet, bought the kit sometime last summer.

    Looked at some older threads but thought I'd bump this if there is a recommendation to keep this powder out of the kit/box for long-term(winter) storage.
    30k in ground vinyl lined pool surrounded by decking in the woods.
    Hayward sand filter circa mid 80's
    If there is a way to do things less expensively and yield a superior product I am all ears

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    Mod Squad YippeeSkippy's Avatar
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    'burbs of Augusta, Georgia
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    Re: R-0870 DPD Powder Expired?

    Well, a lot of folks just store the entire box inside the house out of the heat. It isn't unusual to have bits of sand-like FAS-DPD powder in the tube while testing. As long as it is turning pink to deep pink when you add it it should be fine.

    Yip
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
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    May 2015
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    Mount Cheaha Alabama
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    Re: R-0870 DPD Powder Expired?

    it turns pink.
    just curious what other folks have observed?
    30k in ground vinyl lined pool surrounded by decking in the woods.
    Hayward sand filter circa mid 80's
    If there is a way to do things less expensively and yield a superior product I am all ears

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