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Thread: Pool Step Decorative Tile Repair

  1. Back To Top    #1

    Join Date
    Oct 2010
    Mesa, AZ

    Pool Step Decorative Tile Repair

    I had to drain the water from my fiber-glassed, in ground ~15K gallon gunnite pool.

    The glass and tiles in question are approximately 14 years old. The tiles are under water, and set flush into a recess in the glass in strips one tile high.

    Inspection of about 50' of ~3/4" tile strips showed enormous grout damage. I'm pretty sure the contractor used a standard non-sanded grout to place the tiles, so I am surprised it lasted this long.

    While cleaning out the joints for re-grouting, I found about 30 tiles that are loose from the mesh underneath that originally held them together and down to the surfrace. There is not lots of depth available underneath for a material to anchor them with; I was thinking perhaps of using a very thin coat of standard JB Weld or JB Waterweld.

    I know the standard can be made thin enough; it is said to be "steel filled" and for "marine use." I have no experience with the waterweld product.


    How would 'yall recommend seating these loose tiles before I re-grout?


    I was advised to use an epoxy type grout for the repair, but after finding a box at Home Depot for about $25, was shocked to find that one had to mix the entire batch. They gave no hint as to "pot life."

    Since the original grout lasted this long, I have no qualms about using a standard, non-sanded grout.



    IGP California Pools | Gunnite-Pebble Finish | ~2 yr. old ~12.5K gallons salt water| Triton 400 | T15 SWG| Hayward Progrid pl-p-4 Computer | Hayward Pump and VS 2 HP motor | 2d, Fixed 2 HP pump waterfall and slide.

  2. Back To Top    #2

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Pool Step Decorative Tile Repair

    Well, since it worked once, maybe it will work again. I don't know.

    However (and I can tell you have good knowledge of tile installation), a key to successful tile installation is to put it down on an immovable, inert substrate.....usually a masonry product. Fiberglass does not give you quite that same stability hence the suggestion of a more flexible grout and mastic like epoxy.

    Your call. I would probably do it myself (non-sanded grout) but you likely will not get a manufacturer to suggest it.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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