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Thread: cyanuric acid shelf life

  1. Back To Top    #1
    yzf600's Avatar
    Join Date
    Apr 2013
    Phoenix, AZ

    cyanuric acid shelf life

    I moved into a house this summer and found a jar of cynauric acid in the garage. I'm not sure how old it is, but I'm pretty sure it's not older than 13 years as that is when the pool was built. Does this stuff go bad? Note I'm in Phoenix, so the garage temps get to the 100s for several months every year.
    15k gallon, salt water, plaster, Pentair IntelliFlo pump, Hayward 48 sq ft DE filter, Pentair Intellichlor, hayward Aquanat 200 pool vac ultra located in Phoenix, AZ

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: cyanuric acid shelf life

    As long as it is keep dry in a closed container, it should be fine.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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