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Thread: Poorly bonded coping?

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    Join Date
    Dec 2013
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    San Diego, CA
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    Poorly bonded coping?

    My new pool is currently being tiled. I checked the quality of the installation by lightly tapping on each tile using a large steel nut and listening for any hollow sounds. The tiles appear to be tight and sound, no problems at all. Next, I tapped on the precast concrete coping and heard hollow sounds at each end of almost every piece of coping. I'm surprised because the installer used a rubber mallet to pound each coping piece into place until mortar would squeeze out the sides. I'm guessing he spread the mortar too thin at the ends.

    I'll call the pool contractor tomorrow to get his opinion. Pulling all the coping off would delay the completion, especially if any pieces are broken in the process. The coping is custom made with a 3 week lead time. Has anyone experienced this before?

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    Re: Poorly bonded coping?

    where did you guys find your precast concrete coping? Look nice!
    72' X 10' IG pool with infinity edge spa and in pool dry deck completed Nov 2014. Pentair 3 HP VS pump for pool and spa. Pentair Challenger 3 HP for three 3 feet sheer decent water features. Pentair MasterTemp Heater and QUAD D.E. Filter.

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    jjwalker's Avatar
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    Aug 2012
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    Re: Poorly bonded coping?

    Quote Originally Posted by Steve_K View Post
    Next, I tapped on the precast concrete coping and heard hollow sounds at each end of almost every piece of coping.
    just curious, why are you using this as a watermark for quality install or poorly installed coping?
    18x36 vinyl / sport pool 5.5' deep / 1.5hp Tri-Star 2spd / Hayward c3030 325 sqft cartridge / ~15k gal / TF100

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    bulldogz400's Avatar
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    Re: Poorly bonded coping?

    I'm not sure if that's a sign of poor craftsmanship or not - but what I DO know is that not a pool, that is a lake.

    Looks awesome!
    IG gunite 32 x 18 on a bachelor budget! Click Here To See

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    Re: Poorly bonded coping?

    Quote Originally Posted by cchopkins View Post
    where did you guys find your precast concrete coping? Look nice!
    The coping is custom made for the pool for and spa by Pacific Stone in Los Angeles. http://pacificstone.net/

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    Re: Poorly bonded coping?

    In my opinion it won't go anywhere. I would not worry about it.
    18' x 36' saltwater inground vinyl pool

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    Dec 2013
    Location
    San Diego, CA
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    Re: Poorly bonded coping?

    The Tile Institute of America recommends a minimum 90% coverage of the thinset for outdoor applications. In other words, pressing a tile into fresh thinset and then immediately pulling the tile off, the back of the tile should be 90% covered in thinset. Each day, the pool coping is subjected to swings in temperature causing it to expand and contract and the thinset must maintain a bond under these changing conditions.

    Some sections of my coping have less than 50% thinset coverage. Sure, the coping is not going to fall off any time soon, but I plan to live in this house for 25 years and prefer not to hire another contractor to redo the coping 15 years from now.

    Anyway, the tile work has been going on for 6 weeks now and I'm anxious to finish the pool, so I've given up on having the coping redone.

  8. Back To Top    #8

    Re: Poorly bonded coping?

    I really don't think you will have any issues.
    18' x 36' saltwater inground vinyl pool

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