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Thread: tile repair questions: mortar, waterproofing?

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    tile repair questions: mortar, waterproofing?

    I'm re tiling my pool myself after getting high quotes from a number of pool contractors

    The pool is about 18 years old, the problem with the old tiling was on waterfall walls that are about 18 to 30 inches high out of the water, a total of about 48 sq ft. The tiles were starting to badly fall off, particularly at the 2 corners, the wall is in 5 sections, a sort of zig zag, the old tiles were 3x3, I'm going to be using 6x6

    I got two main questions

    1 - after removing the old tiles there was some damage to the gunite waterfall walls, I have been repairing the damage with mortar, with mixed results, not being an expert on mortar, when using the mortar to re-point some of the brickwork on the top and side of the walls the mortar goes off very hard and looks very solid

    but when I use the same mortar to patch parts of the wall that had tile, in thichness 1/4 to maybe 3/4 inch, the mortar never seems to go off as hard and sometimes even days later appears to be weak, dusty and can be brushed off with a stiff brush or can be in dented with a hard object.

    What I'm I missing about using mortar, do I need to use special mortar when patching a flat vertical surface, or is there some trick to getting the mortar to set really hard?

    I've been using N regular strength mortar

    2 - a friendly pool contractor who was working on the house next door recommended that I use Thoroseal on the walls after I had finished making repairs and before tiling - is this a good idea, will the tiles stick good to Thoroseal?
    *newbie*
    I do not know the size of my pool
    DE filter
    IG plaster
    pool is roughly 25 years old

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    Killer95Stang's Avatar
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    Re: tile repair questions: mortar, waterpoofing?

    Post this same question on the John Bridge tiling forums... you will get the correct answer. They eat, breath, sleep tile!!!
    Pool done!! (backyard = work in progress) 32' x 19' inground freeform with 7' spa, baja step w/ (2) bubblers, stonescapes mini pebble finish, rock waterfall feature, 12" raised bond beam, Intelliflo VS, Whisperflo feature pump, (3) 5G Color LED's, FNS + DE 60, 400K Master Temp, Easytouch 8 w/ remote, Intellichlor IC40, Vision Classic Ceramic Kamado smoker, Margaritaville DM1000!!! Party Coming Soon!!
    TF-100 Test Kit w/ Speedstir

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    duraleigh's Avatar
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    Re: tile repair questions: mortar, waterproofing?

    +1 for John Bridge Tile Forum.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: tile repair questions: mortar, waterproofing?

    well that was a complete waste of my time, I guess nobody here knows anything about mortar or tiling!
    *newbie*
    I do not know the size of my pool
    DE filter
    IG plaster
    pool is roughly 25 years old

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    Killer95Stang's Avatar
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    Re: tile repair questions: mortar, waterproofing?

    Quote Originally Posted by kenpoolman
    well that was a complete waste of my time, I guess nobody here knows anything about mortar or tiling!
    Tiling is the same whether its in a pool or on a shower wall. Why wouldn't you go to www.johnbridge dot com, where they are truly experts in tiling?

    Most people here come here to learn about how to maintain a pool. Rarely do they come here to rebuild one.

    As far as being a waste of time... it wasn't, because now you know where to go for "free" expert tiling advice. Also.. make sure you take some pictures and post them with your questions. Most people aren't mind readers.
    Pool done!! (backyard = work in progress) 32' x 19' inground freeform with 7' spa, baja step w/ (2) bubblers, stonescapes mini pebble finish, rock waterfall feature, 12" raised bond beam, Intelliflo VS, Whisperflo feature pump, (3) 5G Color LED's, FNS + DE 60, 400K Master Temp, Easytouch 8 w/ remote, Intellichlor IC40, Vision Classic Ceramic Kamado smoker, Margaritaville DM1000!!! Party Coming Soon!!
    TF-100 Test Kit w/ Speedstir

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