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Thread: Testing Using the Dilution Method

  1. Back To Top    #1

    Join Date
    Jul 2007
    Location
    Memphis, TN
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    19

    Testing Using the Dilution Method

    I have been using the dilution method until my TF kit arrives tomorrow

    I read in a post that I can test even further than I have. Tell me what the multipliers are, i.e.:


    1 part pool water to 1 part distilled water = multiply x2
    1 part pool water to 2 parts distilled water = multiply x3

    What's the next level I can go to at least try and match colors on the little kit I have now.
    The kit I'm using only tests the TC level to 5

    Thanks.
    23k gal IG Gunite
    Haywood S-220T - Sand Filter

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
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    30,085
    vj.

    Use dilution as a last resort and put little faith in the results. The more you dilute, the worse it gets.

    My experience with it has been it's wildy innaccurate. I think it should be "prescribed" less on the forum and always with the caveat that the results aren't very good.

    I would consider it as a temporary, stop-gap approach and would personally disregard any dilution results over 2:1
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    1 part distilled to 1 part pool water: multiply result by 2 (now your test reads up to 10)
    2 parts distilled to 1 part pool water: multiply by 3 (reads to 15)
    3 parts distilled to 1 part pool water: multiply by 4 (reads to 20)

    Dave is right, each dilution loses you a great deal of accuracy. The reason I suggest it (almost always after suggesting a good test kit ) is because it is somewhat more accurate than "really dark orange"! Not much, but a little.

    8200 gallon 20' x 48" round vinyl frame pool, manually chlorinated with 10% liquid, salt added to ~2000, 12" sand filter, 1600gph pump, TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, Chlorine/CYA Chart
    "Shock" is a process, not a product!

  4. Back To Top    #4

    Join Date
    Jul 2007
    Location
    Memphis, TN
    Posts
    19
    Thx Durlaiegh and TMQ -- I take your comments very seriously. This IS just a temporary method for helping to keep the algae away (psst since it's ALL GONE!

    Have a good evening. Tomorrow I will report on the Algae thread that I have there where I started with asking for help. I'm almost home free..
    23k gal IG Gunite
    Haywood S-220T - Sand Filter

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