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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: CYA test question

    I stand outdoors in the shade (indirect sunlight)....and I have double checked my readings againt a LaMotte Waterlink Express colorimeter and am within 10 ppm or less of the readings the colorimeter gets.

    (The debate continues! Carl, do you still wear the tinfoil hat? I do!)
    Last edited by waterbear; 07-14-2006 at 12:20 AM.
    Retired pool store and commercial pool maintenance guy.

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