My 4 month old decking is already heaving in a large area and is heaving around the coping. It is pulling the mastic away and seems to be getting worse. It is upwards of 1 in now (see pic). Pool guy says this isnt "normal" but should resolve it self by Summer. I am not so sure.
Does anyone have experience with this type of issue? Did it settle back down?
(i live in the Dallas area)