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Thread: LaMotte ColorQ Water Tester

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    waterbear's Avatar
    waterbear is offline Lifetime Member Sniggle Mechanic waterbear 4 stars waterbear 4 stars waterbear 4 stars waterbear 4 stars
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    Default Re: LaMotte ColorQ Water Tester

    Just got an email back from LAMotte tech support about the ColorQ. This is what they had to say:
    The ColorQ has accuracy of ± 0.1ppm on chlorine and pH, ± 15ppm on alk,
    and ± 20ppm on hardness and cya. The cyanuric acid test is a difficult
    one with a meter like the ColorQ, since it is a turbidity style reaction.
    (it gets you in the ballpark on cya). The chlorine and pH tests are great.
    The alkalinity test has been performing very well, my ColorQ has given me
    readings within ± 5 to 10ppm on alk. Hardness is another tough one, but
    the ±20ppm isn't so bad when you consider the wide range of hardness from
    200 - 400ppm. So all in all, it is actually a great meter for that price.


    I feel this is a very honest answer and based on it and knowing LaMotte's reputation I would say this is a worthwhile unit for the home pool owner! A drop counting test for calcium hardness is +/- 10 ppm for the Taylor reagents so this is not that bad and the standard disapprearing dot test for CYA is extremely subjective. My original question to LaMotte was concerning how well the ColorQ compares to more expensive colorimeters that usually cost in the neighborhood of $1000!
    Last edited by waterbear; 06-12-2007 at 02:42 PM.
    Retired pool store and commercial pool maintenance guy.

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