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Thread: Algae? Metals?

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    TexCin's Avatar
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    Jul 2008
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    Spring, Texas
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    Algae? Metals?

    I posted this in another section but didn't get anybody who recognized it. I haven't ever battled algae (well once had mustard algae after a hurricane but it went away with yellow out and hasn't come back). Does this look like algae? I thought you could tell if it was algae because it would brush away but come back. Could this be metal staining? Water numbers all look great except CYA (I have the good test kit - never have the water tested at the pool store) and I'm finishing up a partial drain to rectify this. This picture is of the spa but the whole pool has this. It has slowly built over time.

    I've lurked here for a while and gotten some great advice...thanks in advance for your help.[attachment=0:279nj18o]pool.JPG[/attachment:279nj18o]
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    36x16 gunite, 14,500 gallons, Jandy 2.0hp VS Epump, Jandy CL460 filter, Automatic chlorinator, Jandy Legacy 400K BTU Heater, Polaris 1.5HP spa blower, 2 Colorlogic pools lights and 1 Colorlogic spa light, Polaris 3/4HP booster pump, Polaris 280 cleaner, Jandy PS4 with PDA, QuartzScapes Montego Bay plaster, OK flagstone coping, spray deck (aggregate effect) - completed 3/2011

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    duraleigh's Avatar
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    Apr 2007
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    Re: Algae? Metals?

    Tex,

    The picture is helpful but a little indistinct. If someone made me guess, I think I would gues calcium scaling.

    Posting a full set of test results will get a much better guess.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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