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Thread: How to fix leak at seam of plaster and coping

  1. Back To Top    #1

    Join Date
    Jun 2014
    Austin, TX

    How to fix leak at seam of plaster and coping

    My elevated spa is leaking at the joint between the plaster and the coping. How do I make this seam watertight? The pool builder mason came out and attempted to apply some sort of white material at the joint, which does not look good, but did not fix the leak. They do not appear to know how to fix it.

    When I fill the spa, water starts to slowly pour through and across the rocks on the outside of the spa as soon as the water gets above the plaster/coping joint. Fortunately, the water leaks into the pool. However, I would like to maintain the water at the top of the coping level without having to spill over all the time (lots of unneeded evaporation, etc).

    IG Pool Size: 24,000 gallons
    Flagstone Decking, Pebble Plaster
    Cartridge Filter
    Date of pool build October 2014
    Spa , SWG

  2. Back To Top    #2

    In the Industry

    Join Date
    Apr 2015
    tucson, arizona

    Re: How to fix leak at seam of plaster and coping

    I have had great results using sikaflex sealant. You may have to open that crack up and thoroughly clean out. There are many colors available but not sure what you can find locally.

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