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Thread: Confusing CC test results with Taylor K-2006 test kit

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    Confusing CC test results with Taylor K-2006 test kit

    When I run the CC test, when I add R-0003, the water turns yellow instead of pink. This is not addressed anywhere. I added the R-0871 which seems to be a waste because I stopped at 35 drops on the 10ml test with no change in color. Remained yellow. I am using a fresh sample in a clean (with pool water) tube. I have a Taylor K-2006 test kit, following the directions to a T. I am SLAMing my water to rid of algae. My results for everything else follows:

    FC= 66ppm
    CC= ??
    Ph= 7.0
    Alkalinity= 70ppm
    Calcium= 250ppm
    CYa= 50ppm
    Last edited by Schuess60; 04-15-2017 at 12:24 PM. Reason: Forgot a result

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    Patrick_B's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Welcome to the forum!

    I'm not entirely sure, but my first assumption would be because your FC is so high. Why are you dosed at 66 PPM FC?
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Put in the amount of turbo shock recommended by pool company. Received my test kit hours after I added the shock.

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    Re: Confusing CC test results with Taylor K-2006 test kit

    Quote Originally Posted by Schuess60 View Post
    Put in the amount of turbo shock recommended by pool company. Received my test kit hours after I added the shock.
    Turbo Shock (by Pool Life I am assuming) is calcium hypochlorite. It takes 7lbs of 65% cal hypo per 10,000 gallons of pool water to raise the FC from 0 to 66ppm (I don't know your pool volume so you may have added less). That is a HUGE amount of FC and not something TFP would ever recommend because it is a waste of chlorine and possibly damaging to equipment and pool liners.

    It is possible at really high FC and with enough chloramines in the water that the potassium iodide solution (R-0003) could create elemental iodine (I2) instead of the triiodide anion (I3-) needed to oxidize the DPD and turn it back into pink. Elemental iodine would appear yellow in the water. Another possibility is compromised reagent - does the bottle of R-0003 appear yellow at all?

    You need to let your FC come down a bit before you can really test anything with any kind of accuracy. I'm surprised you could get any of the other tests to work with that much chlorine in the water sample.
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Ok,

    Yea, I would just let the FC come down before you worry about that test anymore. From here, trust your own results once you're comfortable with all the test and ask questions here first if your are unsure of anything.
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    Re: Confusing CC test results with Taylor K-2006 test kit

    You are correct. I put 4 scoops of PoolLife Turbo Shock which is what brought the FC up that high. I have a 21,000 gallon inground pool with a vinyl liner. Water is good color but very cloudy. Today's test results are as follows:
    FC= 10ppm
    CC= 0
    Ph= 7.0
    Alkalinity = 70ppm
    Calcium = 210ppm
    CYa = 40ppm

    The reason I have CC at 0 is again it turned yellow when I added the R-0003 albeit much lighter than the other day. The R-0003 regent appears clear.

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    Re: Confusing CC test results with Taylor K-2006 test kit

    Water is remaining cloudy and I don't know why. Had same problem last year when opening and finally changed out my sand which fixed the problem.

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    Re: Confusing CC test results with Taylor K-2006 test kit





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    Mod Squad jblizzle's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Let's just confirm you actually used R0003. Would not be the first time the wrong bottle was used
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Yes. R-0003.



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    Re: Confusing CC test results with Taylor K-2006 test kit

    Quote Originally Posted by Schuess60 View Post
    Water is remaining cloudy and I don't know why. Had same problem last year when opening and finally changed out my sand which fixed the problem.
    The water is cloudy because your FC is 10 when the CYA is 50. Shock level is 20 FC. You've killed a lot of algae, but not all. You need to keep the FC level up until you pass all three tests as outlined in the SLAM directions.

    Also, Cal-hypo will sometimes cloud water. Another reason to use bleach.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Any ideas on why the CC test turns yellow as opposed to pink?



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    Mod Squad jblizzle's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    How old is the test kit? Where did you get it? Has it ever worked correctly?
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Test kit was purchased a week ago. No, the R0003 has always shown yellow. Purchased on Amazon by VM Innovations.



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    Mod Squad jblizzle's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Picture of the yellow test?

    Only thing that typically turns water yellow is r0600 for the OTO test. I am thinking bad reagent. You can likely get a bottle of r0003 locally pretty cheap to try.
    Jason, TFP Moderator
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    Re: Confusing CC test results with Taylor K-2006 test kit

    The Taylor reagent bottles have a batch number and expiration date. You could call Taylor to see what they say about it.
    Coleman Lay-Z-Spa inflatable spa (by Bestway), 210-230 gal, installed in garage, currently using the dichlor/bleach method, custom test kit which is essentially a Taylor K-2006 with Taylor K-1004 comparator block for pH, Speed Stir

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    Re: Confusing CC test results with Taylor K-2006 test kit

    Quote Originally Posted by jblizzle View Post
    Picture of the yellow test?

    Only thing that typically turns water yellow is r0600 for the OTO test. I am thinking bad reagent. You can likely get a bottle of r0003 locally pretty cheap to try.
    Wouldn't even know where to look. Pool companies only carry complete kits in this area.



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    Mod Squad jblizzle's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Really? The local store I go to has a rack of individual reagents right at the desk.
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    Re: Confusing CC test results with Taylor K-2006 test kit

    I live in rural Tennessee. Please...



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    Mod Squad jblizzle's Avatar
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    Re: Confusing CC test results with Taylor K-2006 test kit

    Ah bummer.

    What happens if you put the r0003 directly into the test water? Can you post a picture?
    Jason, TFP Moderator
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