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Thread: Test chemical replacement

  1. Back To Top    #1

    Join Date
    Jul 2007
    Portsmouth, Virginia

    Test chemical replacement

    I purchased the TF Test Kit last year and my pool stayed clear all summer. Great kit and thanks.

    Now as I get ready to open my pool, which test chemicals will need to be replaced? All are original from my TF Test Kit I got last summer. I did a quick search but couldn't find information. Thank you.
    15 x 30 Sharkline AG pool, Pentair cc100, Pentair 1hp 2-speed, Liquidator.

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana
    If they were stored in mild conditions, you are probably okay with all of them. If your chlorine powder gets really bad, you may have to replace it, but I have some that's 3 years old that still gives the same result as new powder does.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida
    Taylor (the chemistry in the tftestkit) recommends that all chemistry be replaced yearly........My personal experience is more along the lines of JohnT's. If they've been kept well (indoors in an air conditioned environment), they're probably good for longer than that.

    Like John, I've got some 4 years old and still get good results. If someone put a gun to my head and MADE me say how often I would suggest replacing them, I guess I'd say every couple of years so you are SURE you're getting good results. I have individual refills as well as a complete refill set (for pretty good savings) at the website below in my signature.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    The ONLY chemicals that have a shorter shelf life are the DPD powder and the FAS titrant in the FAS-DPD test. Of the two the titrant is probably the one that will go bad first.

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