I have a 32000 gallon vinyl liner in-ground pool with a free-form shape. Since I have owned the house/pool, I have noticed that the decking around the pool no longer lines up with the pavers that line the decking. I believe some hollows are forming under the decking and causing it to sink along the edges. Has anyone else experienced this and had a successful fix? I can post pictures if anyone thinks it will help diagnose. Thanks in advance, this forum has always solved my problems.