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Thread: Best method for cleaning scale from tile

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    Best method for cleaning scale from tile

    I've tried vinegar and a scrub brush but it's not working. I've been told muriatic acid, but how do you do this? How should I apply it and what kind of face protection would I need? Will it mess up the tile? Should it be diluted?
    ~Debbie~

    28k, 22'x37' freeform 3.5'-9'deep
    w/ 7.5' freeform spa raised 18" above pool, Gunite/dark gray plaster, 3 rivers flagstone,
    Aquarite SWCG, Aqualogic ps8, Frog, Colorlogic LED lights.
    Completed 2/06, in Sunny So Cal!

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    Re: Best mothod for cleaning scale from tile

    Quote Originally Posted by skinnydipper
    I've tried vinegar and a scrub brush but it's not working. I've been told muriatic acid, but how do you do this? How should I apply it and what kind of face protection would I need? Will it mess up the tile? Should it be diluted?
    I noticed no one had replied, so I thought I'd chime in. . . there's such a thing as pool tile cleaner that you can get from pool stores. I don't think acid would be good for the tile; ok for plaster, tho it does take off the outer layer.

    I saw a recent recommendation here for pool tile cleaner, but I don't think a specific brand was mentioned.
    ~Jules~

    My pool: INDOOR 13x27 rectangular fiberglass, built ~2001, BBB, TA-60 sand filter, Hayward two speed pump (1 hp/0.33 hp), 3/4 hp booster pump for solar heater
    Taylor K-2006 test

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    skinny,

    This thread has some good info:
    http://www.troublefreepool.com/viewtopi ... ight=scale
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Quote Originally Posted by duraleigh
    skinny,

    This thread has some good info:
    http://www.troublefreepool.com/viewtopi ... ight=scale
    Thanks Duraleigh! This is very helpful.

    What I'm concerned with specifically is my tile/grout. It has an ugly ring around the pool at the normal water line. I have let it evaporate away quite a bit so I had room to work, it's just going sooooo slow with the vinegar/scrub brush. Not to mention, I smell like italian dressing when I give up and get out!

    Is tile a lot more delicate than the plaster? I'm afraid of ruining it, that could be quite costly.
    ~Debbie~

    28k, 22'x37' freeform 3.5'-9'deep
    w/ 7.5' freeform spa raised 18" above pool, Gunite/dark gray plaster, 3 rivers flagstone,
    Aquarite SWCG, Aqualogic ps8, Frog, Colorlogic LED lights.
    Completed 2/06, in Sunny So Cal!

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    I'm pretty sure your tile is bulletproof. It's most likely porcelain and will resist just about anything that would try to stain or etch it. Acid (stronger than vinegar....say about 1:5 muriatic) SHOULD be fine on the tile. Actually, done with care, it should be fine on the grout as well.....just apply it in a small spot so if you see it harming the grout you can stop. (It'll have a tendency to lighten your grout a little but, again, done carefully, it is an excellent scale remover.

    If you apply the acid/water mixture and it doesn't foam, it's not strong enough. If it foams violently for a minuite or so....Oops! too much. Throw some pool water on it.

    First, I would suggest cleaning that line with something just a little soapy (Ajax or comet in small amounts would be fine) to remove any organic scum. I would then suggest mixing 1:5 (muriatic to water) to start and, in the pool with rubber gloves, begin to apply the solution to the scale line. I think you'll be impressed with the results.

    Like anything else, a big dose of common sense goes a long way when handling acid.

    Well, the Italian dressing analogy has whetted my appetite. Time for the house (my house) salad!
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Thanks so much Dave, that's just the info I was looking for!
    ~Debbie~

    28k, 22'x37' freeform 3.5'-9'deep
    w/ 7.5' freeform spa raised 18" above pool, Gunite/dark gray plaster, 3 rivers flagstone,
    Aquarite SWCG, Aqualogic ps8, Frog, Colorlogic LED lights.
    Completed 2/06, in Sunny So Cal!

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