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Thread: Chlorine testing---Does order matter

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    RenegadeT's Avatar
    Join Date
    Apr 2013
    GSO, NC

    Chlorine testing---Does order matter

    I guess so. I was testing the FC and CC with my TFT test kit, and after 2 drops of the first reagent, I realized I had forgot to add the powder. So I added in one spoonful, then continued with the drops...3,4,5...I only got to 9, FC 4,5 when it went clear, I was expecting FC 7-9. Ok, strange, but not terrible until I counted off CC drops all the way to 4,0! I have never seen 1,0 CC, so I knew something was wrong, or maybe my kids had peed in the pool 2 hrs earlier, well that would be wrong too. Anyhow, I tested an hr later, thinking maybe adding the powder to the 10ml pool sample plus 2 drops would change the reading. Sure enough, I measured FC 8,5 and CC 0,5.
    I'm curious whats going on with the chemistry there.
    TF100 kit, 26k Gallon 18x36 Vinyl inground by Blue Haven Pool, TurboCell T-15 SWG, SmartPure ozonator,
    Hayward SmartFilter cartridge with 1.5hp dual spd. Hayward SmartMax Star Pump.

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    Casey's Avatar
    Join Date
    Apr 2007
    SW PA

    Re: Chlorine testing---Does order matter

    I'm not sure but I would have started over when I realized I started without the powder.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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