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Thread: Chlorine Test 10ml sample and how many drops of R-003

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    Her pool boy's Avatar
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    May 2016
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    Chlorine Test 10ml sample and how many drops of R-003

    I have been wondering since I started using my K-2006 and measuring the ppm of CC in my pool with the 10 ml sample if I need to add 5 drops of R-003 as I have never noticed a change in the water after 3 drops. Sooooo, I was wondering if 3 drops of R-003 is enough to measure if there is any combined chlorine in the sample?

    thanks in advance for your advice...

    S
    SteveS

    16' x 50' - 95K L (25000 gallon) I.G. Vinyl liner 12.5 Liquid Chlorine
    Wicor Pantera P24 Sand Filter Pentair Superflo Variable Speed Pump
    Zodiac 3510WD Robotic Cleaner Raypak R336A Heater. ​Taylor K2006c test kit

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    JoyfulNoise's Avatar
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    Re: Chlorine Test 10ml sample and how many drops of R-003

    You want to use the full five drops. If it's one reagent you will never run out of, it's the R-0003. I bought a big 2oz bottle of it and it's well into its second year of use. I have barely used 1/4 of it so far. There's no sense in trying to be economical with it.

    As for the color change, I have often found that I don't see a faint pink until the fifth drop. The R-0003 is not a titration, you are actually causing a chemical reaction to occur to develop a color. Using less than the 5 drops may not fully develop the color from CCs and so you can cause your measurements to be off by using less than the required amount.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Her pool boy's Avatar
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    Re: Chlorine Test 10ml sample and how many drops of R-003

    Cool...I will continue to use the 5 drops.

    S
    SteveS

    16' x 50' - 95K L (25000 gallon) I.G. Vinyl liner 12.5 Liquid Chlorine
    Wicor Pantera P24 Sand Filter Pentair Superflo Variable Speed Pump
    Zodiac 3510WD Robotic Cleaner Raypak R336A Heater. ​Taylor K2006c test kit

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