Concrete coping separation from pool


New member
Feb 12, 2020
Phoenix AZ

My pool/project was completed Mid-March. Since then slowly the upper concrete coping has been separating around the pool. This picture is from mid May and actually since then it has actually gotten a bit worse. Currently, the worst spot has almost 1/4in gap.


The PB is aware of the issue and has the tiling trade coming out to "fix" it along with other issues the tile company had but they aren't being very communicative when it comes to details as to what they will be doing to fix it. I guess what I am looking for is what suggested fixes do you fine folk have? What is causing this separation?

Also, "Accurate Tile Company" in Phoenix Metro is absolutely terrible.