Hi I have a 18 yr old liner inground pool, type and installer unknown. It is a 16x32 grecian style, at deep end (6.5') where the long side meets the short angled wall that buttts to the end the wall and deck have sunken about 2-3 inches, overall about 6 feet in length is affected appprox 2-3 ft left and right from corner. In other words if you follow the water level down the wall of the pool along the tile print pattern it is 2 inches difference where the water level is on the liner from the shallow end to deep end... having liner replaced as it is original, need to know how to raise this area so this problem is fixed .thanks in advance

Sorry but I doubt that you can fix this settling issue. You woulkd need to get under the pool and use hydrolic jackets to raise the concrete. It could be done but far from a DIY project. I have had it done to house foundations but I hired a guy who had the tools and experience.