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Thread: I'm confused about chemical reading today

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    I'm confused about chemical reading today

    Today's results, using my awesome TF-100 Test Kit:
    FC= .5
    CC= .5
    TC= 1.0
    TA= 70
    CH= 180
    CYA= 70

    Until today, I've always had crystal clear water, with no sign of slimey-ness on the pool wall...until today...yep, I have slightly cloudy water and the vinyl feels slimey-ish. It doesn't have any type of growth, or anything else visible. We added 2 3" chlorine tabs yesterday morning, but wasn't able to test the water until today. I entered the results in the pool calculator but I don't know what it's telling me apparently...or I'm "skeered"

    I need to update my signature, we're finally dried up, no mud.
    OurFirstPool - Tampa, FL - Built June 2012
    21,000 gallon, Cartridge filter, 1.5 hp pump
    27' Round AGP (dug out deeper in the middle)
    54" deep (buried about 28")

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    Re: I'm confused about chemical reading today

    Your CYA level is getting fairly high already. If you continue using chlorine tablets it is going to get higher still and cause more serious problems than the one it is causing right now.

    [shock:1fxzfvc2]You need to shock the pool. The sooner you start the less work it will be.[/shock:1fxzfvc2]
    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

    Re: I'm confused about chemical reading today

    "involves raising the FC level to shock level" so that means to add shock until it FC reaches 28 after waiting an hour? And then I continue to test/shock each day until I pass the FC loss test?
    And, finally; does the slight slimey-ness mean it's algea? We've been getting rain every day this past week, but since it wasn't the flooding rains we had been having, I didn't think of it causing my pool balance to mess up that quick. It really was perfect last weekend.
    I apologize, I really have gone through Pool School several times, and continually go back for reference...this is the first time I've had any issues though; it's amazing how quick you (me) can lose your confidence! Thanks for the quick response too! I appreciate the site and you're help now.
    OurFirstPool - Tampa, FL - Built June 2012
    21,000 gallon, Cartridge filter, 1.5 hp pump
    27' Round AGP (dug out deeper in the middle)
    54" deep (buried about 28")

  4. Back To Top    #4

    Re: I'm confused about chemical reading today

    Here at tfp shock is not a product
    We recommend useing liguid chlorine (bleach, liguid chlorine from pool store) to do the shock process

    Yes the process is dose chlorine to shock level test an hour later redose to shock level
    After doing this several times you will start to see your fc level holding longer so you can adjust the frequency of testing and dosing as you go. Just ensure you keep your fc at shock level as often as possible
    You will be done with the process after the following
    Water is clear (no slim)
    Pass an overnight chlorine loss test
    Less then1 CC

    Also slimmyness is a very strong sign of algea
    24' 52" Above Ground
    BBB
    LOVE TFP
    TF Test kits, Pool School, Pool Calculator

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