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Thread: When to replace FAS-DPD #1

  1. #1
    Join Date
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    Default When to replace FAS-DPD #1

    I received Ben's PS234 Kit in May. The FAS-DPD #1 powder is starting to turn dark grey. It seems to work OK but, does the test remain accurate when the powder starts to turn? It there a point where it has to be thrown out? My CYA is high so I need to do the DPD testing rather than the OTO. Thanks

  2. #2
    Poconos is offline SuperMod Emeritus Whizbang Spinner Poconos 4 stars Poconos 4 stars Poconos 4 stars Poconos 4 stars Poconos 4 stars Poconos 4 stars
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    Default Re: When to replace FAS-DPD #1

    Check this thread about an experiment I did recently. I mentioned checking again toward end of season and haven't done that part yet.
    Al

    http://www.poolforum.com/pf2/showthread.php?t=4659

  3. #3
    Join Date
    Apr 2006
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    12

    Default Re: When to replace FAS-DPD #1

    Thanks Poconos: Taking a look at the thread you attached, it looks like I am still ok with my powder. Thanks again..

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