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Thread: DPD Test Powder turned to granules

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    Join Date
    Aug 2013
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    Hilton Head, SC
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    DPD Test Powder turned to granules

    My DPD test powder, R-0870, turned to granules over the winter, even though the entire TFT test kit was indoors, air conditioned & heated. Is it still usable?

    thx

    ed
    4k, IG, Gunnite, Jandy Valve, 1HP Haywood, 2" flow, single 2" line for skimming & vacuum, Pentair FNSP 36 DE w/125 GPM Multiport 50 PSI, TF-100 Test Kit, built 1991, Hilton Head, SC

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    Mod Squad Texas Splash's Avatar
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    Re: DPD Test Powder turned to granules

    It should be okay Ed. Simply tap/crush the granules into a fine powder and you should be fine.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    duraleigh's Avatar
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    Re: DPD Test Powder turned to granules

    If, when you test, the pool sample turns pink, the R-0870 is good.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Oct 2016
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    Phoenix
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    Re: DPD Test Powder turned to granules

    My old R-0870 got granular over the winter and I compared it to the new batch I just got from the TFT spring sale. Same results.
    Dave in Phoenix, AZ, USA
    12,000 gallon IG (5' max depth) , Pebble-tec,
    Hayward SP2303 Maxflo 1.65 HP, Triton TR60 sand filter, 1 skimmer, Pool Devil skimmer, 3 returns, 1 aerator port, Navigator suction-side sweep, Hayward valve actuator, Rainbird sprinkler timer used for valve automation and chlorine injection. Softened water used for makeup.

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