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Thread: Lime Scale

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    Lime Scale

    Going to attempt the muriatic acid in a spray bottle approach to this problem. I have a few questions:

    1. Its a 5 water to 1 acid mix?

    2. What does it do to the grout?

    3. I intend to be in the pool when I do this as I can't see that sort of dilution causing any problems. ie: Will not be worrying about the family jewels being exposed.

    Any other tips?

    Thanks
    Plaster In Ground, with Waterfall Spa. Raypak Heater, Nautilus DE Filter DNS48. Built about 2000.

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    Re: Lime Scale

    What surface has the scale attached to?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Lime Scale

    Thanks,
    It's on the tiles, around the water line.

    Regards
    Plaster In Ground, with Waterfall Spa. Raypak Heater, Nautilus DE Filter DNS48. Built about 2000.

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    Re: Lime Scale

    5:1 is probably too weak. You can try it but, unless it foams up when it contacts the scale, you'll need to make it stronger. 3:1 works pretty well for me.

    It will attack the grout but not as aggressively as the scale. Avoid getting it on the grout (yeah, that's impossible, I know). Just apply it carefully and any that gets on the grout simply dilute immediately with pool water.

    Wear rubber gloves. Be sure to use a brush that is made to handle acid.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Lime Scale

    OK good stuff, thanks. I'll give it a go.

    Chris
    Plaster In Ground, with Waterfall Spa. Raypak Heater, Nautilus DE Filter DNS48. Built about 2000.

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    Re: Lime Scale

    Hmmm! I had a go at this approach. That could be a lifetimes work! Is there any paste like substance on teh market that can be spread on and then left awhile and washed off?

    Thanks
    Plaster In Ground, with Waterfall Spa. Raypak Heater, Nautilus DE Filter DNS48. Built about 2000.

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    Re: Lime Scale

    What ratio did you use and what percent was the muriatic? Did it foam on contact?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Aquatica's Avatar
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    Re: Lime Scale

    why not just use tile cleaner?

  9. Back To Top    #9

    Re: Lime Scale

    I used the strength that Dave suggested. Maybe I need to leave it on the tiles longer? I was a bit worried about the grout getting dissolved. Also, I had a kitchen scrub pad to work it in with, maybe I need a strong brush?

    Thanks
    Plaster In Ground, with Waterfall Spa. Raypak Heater, Nautilus DE Filter DNS48. Built about 2000.

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    Re: Lime Scale

    Did it foam on contact?
    If not, your solution is not strong enough.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Lime Scale

    Just a thought in regards to the MA dilution ratio. Did you start out with 31.5 % or 15 %. obviously you will cut the 15% less.
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    Re: Lime Scale

    Quote Originally Posted by Aquatica
    why not just use tile cleaner?
    You certainly could. Most of us have muriatic acid on hand already though. It works just as well to use the MA/water mixture.

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