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Thread: Need help with possible stains on pebble finish

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    bfoust's Avatar
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    Need help with possible stains on pebble finish

    New to forum. Have a one year old pool and see a lot of blotchy look on bottom of pool and edges where wall meets bottom. Not sure whether this is dirt staining or metal staining. I manage the water myself and have never tested positive for metals. I do have small copper scuppers. I did not know to use a metal sequestration product until now. Not sure the pool builder used in the beginning. Just looking for advice where to start to test stains. I notice a product online called Jack's magic stain test. Was thinking about trying that but wanted to learn more from others. Not really sure a one year old pool should have stains already. Thanks for help.

    Current stats
    Wet Edge Northshore Tahoe (Greyish pebble finish)
    pH: 7.4
    Total Alkalinity: 100
    Hardness: 225
    Chlorine: 3-5ppm
    CYA: 80
    Copper: 0
    Iron: 0
    TDS: 900
    Phosphates: 350
    Temperature: 80

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    duraleigh's Avatar
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    Re: Need help with possible stains on pebble finish

    Welcome to the forum.

    Can you post a picture?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad pooldv's Avatar
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    Re: Need help with possible stains on pebble finish

    Welcome to TFP!

    Other things can contribute to copper staining as well; algaecide, mineral/ion/copper systems, copper heat exchangers and PH under 7.0.

    Add your pool info to your signature so that we can better help you. More here, Pool School - Read This Before You Post

    This article might help you diagnose the problem, Diagnosing Pool Plaster Problems

    This stain ID kit might also help, Jacks Magic Stain Identification Kit JMSTAINID at Sunplay
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    bfoust's Avatar
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    Re: Need help with possible stains on pebble finish

    Attached photos. Really do not do it justice due to glaring and grey bottom. Let me know if this helps at all. Thanks.
    Attached Images Attached Images
    Pool Size: 32,000 Gal (AG)
    Pentair DE 60 Cartridge Filter
    Pentair Intelliflo VS Pump, Pentair Pump for Waterfall, Pentair Pump for Spa Water Edge
    Pool filled with tap water

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    bfoust's Avatar
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    Re: Need help with possible stains on pebble finish

    BTW - I also add a weekly dose if Natural Chemistry (Pool Perfect + Phosfree) to reduce phospates. I have an Ozone system on my pool as well and notice that when I add the Pool Perfect it gets sucked into the ozone area and distributed on the surface of the pool in bubbles around the return jet. It quickly goes away. it is a brown liquid and I wondered if it had anything to do with the discoloration.
    Pool Size: 32,000 Gal (AG)
    Pentair DE 60 Cartridge Filter
    Pentair Intelliflo VS Pump, Pentair Pump for Waterfall, Pentair Pump for Spa Water Edge
    Pool filled with tap water

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    Mod Squad pooldv's Avatar
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    Re: Need help with possible stains on pebble finish

    I don't think pool perfect contains copper so probably not. Hard to tell from the pics. See if the article on plaster problems helps.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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