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Thread: Scaling on a Vinyl pool

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    Scaling on a Vinyl pool

    So we opened our pool and poured tons of bleach in it and it was still cloudy. Got in and felt the hard scaling ring around the entire pool to where we had it drained to all winter. How the heck do we get this stuff off? Tried scrubbing but to no avail. Do we need to drain it back down to the scaling and drop the ph with muriatic acid?
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Mod Squad zea3's Avatar
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    Re: Scaling on a Vinyl pool

    Could you post a complete set of test results? We don't know what the pH is at now, so dropping it may not be an option.
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    Re: Scaling on a Vinyl pool

    fc-14
    cc-2
    cya-50
    ch-110
    ph-7.2

    its clean and holding chlorine levels pretty good, but its cloudy...I am guessing due to the scaling on the walls. kids want to swim!
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    JasonLion's Avatar
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    Re: Scaling on a Vinyl pool

    Your test results are very suggestive of algae problems, and don't show any indications for scaling. My guess is the scaling happened a while back and the current cloudy water is algae. Regardless, you need to keep shocking at least until the CC level comes down, and probably longer (depending on how quickly the water clears up).

    Scaling on vinyl can often be scraped off as long as you are careful not to cut into the vinyl with the scraper. If that doesn't work you can try softening it up by keeping PH, TA, and especially CH levels on the low end of their respective ranges.
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    Re: Scaling on a Vinyl pool

    is it possible to get it clear even though there is lime scale on the walls? and will the cc level come down, if there is scaling present?
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Re: Scaling on a Vinyl pool

    Yes. The scale is really an independent problem from the CC being present. You need to shock until your CC is 0.5 or less, your water clears up, and you lose less than 1 ppm of your FC overnight.

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