Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: Long Crack under coping.

  1. Back To Top    #1

    Join Date
    May 2016
    Location
    Phoenix/AZ
    Posts
    11

    Long Crack under coping.

    Hopefully this is the best place for this.

    New to pools and unfortunately we didn't notice this crack surrounding half the pool. Its between the top of the tile and the coping. At first I thought maybe it's just grout, but the crack is pretty deep. The depth and width varies as you go around the pool. It's as if the concrete is lifting. I guess you could say it's a cantilevered concrete deck and not typical coping nased on what I have seen. What's the best way to fix this?

    I can't figure out how to upload a photo from my phone.

  2. Back To Top    #2
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Long Crack under coping.

    Welcome to TFP!

    Polyurethane caulk is probably best.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  3. Back To Top    #3

    Join Date
    May 2016
    Location
    Phoenix/AZ
    Posts
    11

    Re: Long Crack under coping.

    Quote Originally Posted by pooldv View Post
    Welcome to TFP!

    Polyurethane caulk is probably best.
    Thanks and Thanks!

    Should I use backer rod?

    Picture below. That's about half an inch wide, but deep.

    .20160524_183030.jpg

  4. Back To Top    #4

    Join Date
    May 2016
    Location
    Phoenix/AZ
    Posts
    11

    Re: Long Crack under coping.

    Quote Originally Posted by blakeaz View Post
    Thanks and Thanks!

    Should I use backer rod?

    Picture below. That's about half an inch wide, but deep.

    .
    To clarify, it's about a half inch high and circles about a third of the pool. What would be the proper way to fill this? Backer rod then caulking? Thanks!
    20160524_183045.jpg

  5. Back To Top    #5

    Join Date
    Apr 2013
    Location
    Sacramento, CA
    Posts
    2,769

    Re: Long Crack under coping.

    This is a moving joint, especially in Arizona. So you don't want to put in anything that would imar the movement of the joint. Do you have a joint between the concrete and the wall? Please say yes?

    Anyway some backer rod and Polyurethane caulk should work. Don't expect it to last more than a couple of years.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •