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Thread: What is this white stuff growing on my tile on rocks

  1. Back To Top    #1

    Join Date
    Jan 2014
    Location
    Flower Mound TX
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    34

    What is this white stuff growing on my tile on rocks

    So this is a brand new pool, plaster is three weeks old today and I noticed this white stuff growing on my tile and rick. I hate to think this is calcium scaling, but I wanted to see what you all think:




    I do have the TF-100 Test kit and the pool is about 34,000 Gal

    So far the test result haven't been to far off, but I have been adding a lot of acid as well as 10% bleach. We are still waiting on the plaster before we introduce the salt.

    Here are the result I just ran this afternoon:
    PH: 7.5
    FC: 1
    CC:.5
    CH:200
    TA:70
    CYA: 70

    Any thoughts?

    Thanks,

    Greg

  2. Back To Top    #2

    Join Date
    Aug 2010
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    Dallas, TX
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    Re: What is this white stuff growing on my tile on rocks

    It could just be stuff left behind from evaporation, including calcium.

    For a plaster pool your CH is too low by the way. Your FC is WAY too low.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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  3. Back To Top    #3

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    Jan 2014
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    Flower Mound TX
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    Re: What is this white stuff growing on my tile on rocks

    thanks, I know the CH and the FC is low, need to buy more bleach tonight and I was concerned about adding more Calcium before I knew what that was.

  4. Back To Top    #4

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    Re: What is this white stuff growing on my tile on rocks

    I get little marks like that too in a few places. Seems to always be where the coping grout is, so it is something that probably rain water is washing out of the grout and onto my water line tile. Based on the second picture, it appears you have the same thing.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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  5. Back To Top    #5

    Join Date
    Jan 2014
    Location
    Flower Mound TX
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    Re: What is this white stuff growing on my tile on rocks

    That does make since as we have had a lot of rain this week here in Dallas.

    any ideas how to clean it off, it doesn't wipe off.

    Thanks,

    Greg

  6. Back To Top    #6

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: What is this white stuff growing on my tile on rocks

    I use a stainless steel wire brush, as in a welder's brush. Make sure your stone is safe for this, as in color all the way through, not a faux finish. I don't have stone, so no worries for me.

    http://www.amazon.com/US-Forge-Weldi...3819915&sr=8-1

    And yes, we've had tons of rain. I love it!
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

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