Not many people will have this problem, which is why I couldn't find a thread. A large live oak tree was felled during Hurricane Matthew in October 2016, and the roots lifted up an "earthball" with the roots of some azaleas. This has created a space right beside the wall of the Gunnite pool. Amazingly, the pool wasn't damaged. Should we pour cement into the space created, before we pack the earth back down? Thanks!