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Thread: TF-100 test kit - does it have an expiration date?

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    Join Date
    Jun 2012
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    TF-100 test kit - does it have an expiration date?

    I am thinking of buying the TF-100 test kit (I am new to pool ownership).
    Do any of the tests in the kit expire? If yes when? If I buy it now, will it still be accurate next season?
    1) 20x40 IG concrete (approx. 35K gallons)
    2) 1 HP Pentair WhisperFlo pump
    3) DE filter (48 sq. ft.)
    4) Polaris 280 cleaner (with booster pump)
    5) DIY solar heater

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    benavidescj's Avatar
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    Apr 2010
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    Re: TF-100 test kit - does it have an expiration date?

    Try this link for info on chemical expiration.
    Carlos
    Pool: 28,000 gallons IG; IC 40 SWG; Pentair 120 gpm cartridge filter; Marble finish; Pentair Wisperflow 1.5 hp; Polaris 360
    Spa: 350 gallon; Bromine
    How to shock your pool

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    JasonLion's Avatar
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    Re: TF-100 test kit - does it have an expiration date?

    Officially the reagents are good for one season. In practice they will often last much longer as long as they are stored somewhere cool and dark and never frozen.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: TF-100 test kit - does it have an expiration date?

    Could you refrigerate?
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

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    duraleigh's Avatar
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    Apr 2007
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    Re: TF-100 test kit - does it have an expiration date?

    Could you refrigerate?
    Some do but I don't believe it is necessary.

    Probably the best thing you can do to extend the life of the reagents is to test inside your house and store the kit inside your house. The reagents don't like extreme changes of temp (hot or cold) but they love being inside.

    I go to the pool and get a styrofoam cup full of water and then go sit at the kitchen counter to perform the tests. My kit is kept in a closet nearby.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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