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Thread: Testing Samples Indoors

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    phenwick's Avatar
    Join Date
    May 2009
    Metro St. louis Mo.

    Testing Samples Indoors

    Are there any down sides to collecting a plastic cup of pool water and running the test indoors in the kitchen?
    Would the indoor lighting, if testing at night, affect the readings? Any other problems?



    22,000 IG vinyl; Swim Out; Sand Filter

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: Testing Samples Indoors

    I frequently test indoors. I try to use as much light as possible. My fridge is white so that helps for background use.
    Helpful links: Pool School; CYA/Chlorine Chart
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  3. Back To Top    #3

    Join Date
    Jan 2009
    Cupertino, CA

    Re: Testing Samples Indoors

    For color-matching tests like pH and the OTO (yellow) chlorine test, indirect natural light against a white background is best; easy enough to achieve that indoors. If it's not practical to test during the day, indoor lighting probably won't lead you too far astray, although I have no technical or personal experience to back up that thought.

    For titration tests like FAS-DPD or TA or CH, you just need enough light to be sure of the color changes, the exact colors are not important.
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  4. Back To Top    #4

    Re: Testing Samples Indoors

    I would suggest reading the CYA test outdoors in open shade and the LaMotte borate strips really need to be read in sunlight. I have yet to find an artificail light that will give an accurate reading with this particular strips.

  5. Back To Top    #5
    TizMe's Avatar
    Join Date
    Aug 2007
    Covington, Georgia

    Re: Testing Samples Indoors

    I test in doors like FPM. We have a micro wave above the stove with a light that I use so I can see the test results. On PH tests my wife calls the shots on that reading because my eyes aren't all that great and she is better at color than I am!
    Don't have a pool right now. Just sharing what I have learned over the years!
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