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Thread: OK I'm back and armed with numbers!

  1. Back To Top    #1

    Join Date
    Sep 2016
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    UK
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    OK I'm back and armed with numbers!

    My post 1st a few weeks ago, UK pool Owner What is this??

    was absolutely rubbish without full test data, well the test mentioned was quite expensive and difficult to get hold of here in the UK, so i went more expensive
    I now have a Lamotte ColorQ7

    Not done a thing with the pool since my 1st post so here is the data I collected tonight:
    Inground outdoor Pool of approx.20,000 gallons

    Test results

    FC 4.18
    TC 4.62
    PH 7.5
    ALK 94
    CH 576
    CYA 56


    According to Lamotte/me
    FC and Tc are high which I can see
    PH is good
    TA OK
    CH to high
    CA OK

    so guys looking for your thought on what the stuff is I keep getting at the bottom of pool



    Cheers

  2. Back To Top    #2
    Mod Squad Patrick_B's Avatar
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    Re: OK I'm back and armed with numbers!

    Chlorine levels aren't that high really. What does this stuff at the bottom of your pool look like? Can you describe it?
    TFP Moderator
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  3. Back To Top    #3

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    Re: OK I'm back and armed with numbers!

    Quote Originally Posted by Patrick_B View Post
    Chlorine levels aren't that high really. What does this stuff at the bottom of your pool look like? Can you describe it?

    You clink my first post in the post above, photo's there of the stuff

  4. Back To Top    #4
    kellyfair's Avatar
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    Jun 2016
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    Tampa, FL
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    Re: OK I'm back and armed with numbers!

    Duraleigh in your other post gave you the best answer. That is algae, and with a CYA of approximately 60, you don't have enough chlorine in your pool. See this chart, to understand relationship between FC and CYA, and read through these instructions on how to slam your pool.
    Kelly, Tampa FL
    15' by 4' Intex above ground metal frame, about 5300 gallons
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