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Thread: Sunlight vs Daylight bulb

  1. Back To Top    #1

    Join Date
    Apr 2012
    South Dakota

    Sunlight vs Daylight bulb

    When using a test kit is it best to be outdoors to get good test results from sunlight or a daylight bulb inside?

    Last week I did some testing of PH outside and inside and the color was a little different in doors. PH seemed a light red vs indoors using a daylight where it was a little darker red.

    Thoughts? Opintions?
    18600 Gallon In Ground
    Vinyl liner
    Aqua Genie Skimmer/Return
    Purex Triton Challenger wet end with Emerson 2EZ Speed Two-Speed with Timer Motor 3/4HP #EB2980T
    Sta-Rite 145361 Cristal-Flo II High-Rate Sand Filter 22Inch
    Taylor K-2006

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: Sunlight vs Daylight bulb

    I would guess the daylight bulb will give you more consistent results.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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