I have noticed on one side that pool is 1/2" off level. Actually pool walls are level, but it seems like when liner tracks were installed that 2 pieces were not installed perfectly so now I have about 1/2" waterline out of level. It drives me crazy, as liner has these tiles that that like deltoids, so even a smallest difference in water level make a big difference in size of the tile. Is it possible to stretch rest of the pool liner downward somewhat, to get it to 1/4" difference. First I was thinking on taking the liner out of the track, but that seems a risky business, as I might not be able to put it back in, let alone raise it 1/2" more. What to do?