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Thread: Readings Question

  1. Back To Top    #1

    Join Date
    May 2007
    Location
    Fayetteville, Arkansas
    Posts
    220

    Readings Question

    Hey Everybody --

    Hope your pools are doing great for you ... Temps in the high 80's here and humidity off the chart.

    Got a question or two.

    Using a Taylor K-2006 Test Kit.

    Yesterday's readings:
    FC .5
    CC .5
    Ph 7.0
    TA 50
    CYA <30 Added stabilizer at the recommended rate using the BleachCalc on this site and was going to add the proper amount of 6% bleach tonight and adjust the TA too.

    Here are todays readings:
    FC 1.5
    CC .5
    Ph 7.0
    TA 50
    CYA 30 but slightly dingy on the black dot at bottom of tube

    Question 1: Why a variation in the FC today from yesterday with only the addition of CYA yesterday.
    Question 2: Added the calculator's recommended amount of CYA (6 lbs) and made only a slight change in the
    water clarity in the test tube. Went from a very clear way <30 to slightly dingy 30 today.

    I'm not a chemist - so go easy on me. Hahaha
    20x40 30,000 gal IG Liner, Pentair II Sand

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    If you didn't add any chlorine then one of those FC tests is wrong. Try testing it again and see if you can get a consistent result. Also, you should bring your FC up to 4 or 5.

    It can take CYA up to a week to dissolve. I wouldn't expect it to come up all the way in only a day.
    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

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    Fayetteville, Arkansas
    Posts
    220
    Maybe it was yesterday's FC reading that was inaccurate. Checked it again just now and it registered 3 drops on the 10 ml scale = 1.5.
    I'll add the 6% to bring it up more.

    Thanks for the response.
    20x40 30,000 gal IG Liner, Pentair II Sand

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