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Thread: Help with plaster patch, acid wash order

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    Help with plaster patch, acid wash order

    Hello all.
    Been reading through these very informative forums. I thought I had a ginormous problem, but after seeing what other have tackled, I'm feeling more confident. I'm hoping those of you with more experience can give this green horn a few pointers.

    Here is the situation - bought the house in central Maryland about 7 years ago, pool was built in 1992 (i think). I do not know if it has been replastered, but am guessing not. I will admit that I have not been as diligent as I should have been the last few summers with the chemistry - pretty much just shocked it and/or added clarifier when the water discolored. This will change once this problem is corrected.

    I had a patch of plaster (about 4"x6") pop off last summer in the deep end along the curve of the bowl, and have noticed issues with staining, and mortar problems around some of the brick work along the decking. So, this spring (about 10 days ago) I decided to address the patch, the staining, and the tuckpointing and drained the pool completely. Now that it is empty, I've found a few more areas where I can tell the plaster is loose - you can either see it beginning to crumble at the intersection of cracks, or it sounds hollow when you rap on it.

    My questions are:
    - Should I remove all of the loose plaster, patch, then acid wash, then refill or
    - Should I remove all of the loose plaster, acid wash, patch, then refill or
    - Acid wash, remove plaster, patch, refill?

    I'm treating the tuckpointing as an issue that is independent of the above, except working on it while the pool is empty is easier. Please tell me if I'm way off base with that assumption.

    A replaster job is out of the question right now because of finances, so I'm going to patch. BTW - I was going to use EZ Patch 1 (NOT the fast setting one) - any strong opinions one way or the other? I have not bought it yet.

    I've attached a few pictures and I think some of my pool specs made it into my signature. ANY and ALL help is much appreciated!!
    Attached Images Attached Images
    24K gallons, IG, Kidney shaped, DE filter, 1.5HP pump, plaster/gunite, built in 1992.

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    Re: Help with plaster patch, acid wash order

    This is my first post here, did I do something wrong? Was hoping for a some feedback by now - are my expectations off base? Being sincere here, not sarcastic.
    Thanks.
    24K gallons, IG, Kidney shaped, DE filter, 1.5HP pump, plaster/gunite, built in 1992.

  3. Back To Top    #3
    Taz's Avatar
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    Jul 2010
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    NE FL
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    Re: Help with plaster patch, acid wash order

    19 years? Water getting behind the plaster? Might be time to replaster entire pool?
    Bump (for the experts to chime in).
    30' x 15' kidney shaped, 3.5-5.5 ft deep, wet-mix shotcrete inground, AutoPilot Digital SWG - RC35/22 cell, 36" main drain, 1 skimmer, 4 returns, Dyna-Pro 1 HP, Sta-Rite 2 (PLM100) filter, Polaris 360 cleaner, Marbletite (Marquis/Bluestone), Screen enclosure

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    susa's Avatar
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    Oct 2010
    Location
    Deep South
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    578

    Re: Help with plaster patch, acid wash order

    based on the pictures, the areas need to be chipped out and pool replastered

    any amount of temporary patch work will not work

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    Re: Help with plaster patch, acid wash order

    I had a chunk of plaster break off the edge of my stairs. I patched it with underwater setting plaster repair. That was a year ago. I believe it cost $10 for a 1.5 gallon container.
    It doesn't look perfect, but it does work, at least until I replaster the pool.
    ~26000 gal gunite with steel walls (aka "hybrid"), sta-rite sand filter - T-200-BP1, 3/4hp Pentair Whisperflo pump, figure-8 shaped pool, polaris 380 and booster pump, borates, Compupool CPSC 36 SWCG.

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