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Thread: First Time Test Results

  1. Back To Top    #1

    Join Date
    Jul 2012
    Location
    Philadelphia, PA
    Posts
    3

    First Time Test Results

    I got a Taylor K-2006 kit recently and tested the water yielding these results:

    FC: 10.5
    CC: 0 (no color change when I add the DPD Reagent #3)
    pH: 7.4
    Alk: 180
    CYA: 90

    I took a sample to the pool store today and got these results:

    FC: 6.24
    CC: 0.45
    pH: 6.9
    Akl: 111
    CYA: 92
    Hardness: 126

    They said the low hardness was of particular concern and want me to put 25lbs of hardness in the pool.

    I came home and tested again, and this time did Hardness as well and got the following:

    FC: 9.2
    CC: 0
    pH: 7.2
    Hardness: 310

    My questions are:
    1. Can their chlorine readings be that far off? and can I really have 0 CC?
    2. I have never had a problem with Hardness before and I did the test twice to confirm the result. Can they be that far off?

    My pool is clear and beautiful. I don't want to start dumping tons of chems in if i don't have to (and as I have done before based on their recommendations) I plan on adding Borax to bring up the pH and knock off the tri-chlor soon.

    I have an at least 25-year old 25,000 gal in-ground plaster pool. DE filter and live on the central East coast of the US (PA).
    Robert
    25,000 gal, IG Plaster, DE filter, apx 25 yrs old.

  2. Back To Top    #2
    Butterfly's Avatar
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    May 2007
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    South Carolina
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    10,045

    Re: First Time Test Results

    You have one of the recommended test kits and you should always trust your testing over any pool store.

    And, yes, their tests can be that far off; for various reasons, beginning with their testing techniques and equipment.

    If you would like to read Extended Test Kit Instructions, here's a link: extended-test-kit-directions-t25081.html
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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  3. Back To Top    #3

    Join Date
    Jul 2012
    Location
    Philadelphia, PA
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    Re: First Time Test Results

    Thx Butterfly - just needed some confirmation.
    Robert
    25,000 gal, IG Plaster, DE filter, apx 25 yrs old.

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    May 2010
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    Tucson, AZ
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    37,389

    Re: First Time Test Results

    Trust your own tests.

    Why do you want to raise the pH from 7.4?

    Your CYA is already very high and a 50% water change would not be uncalled for.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  5. Back To Top    #5

    Join Date
    Jul 2012
    Location
    Philadelphia, PA
    Posts
    3

    Re: First Time Test Results

    I tested today at 7.2, seems to be falling so I thought to bring it up. But if it is not necessary yet I will wait.

    We have been getting tons or rain so I am hoping if I get off the tri-chlor, I can hold out until the end of the season. I usu drain the pool about halfway on closing b/c I have a mesh cover and it fills up by spring.
    Robert
    25,000 gal, IG Plaster, DE filter, apx 25 yrs old.

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