We are up to the skimmer and return openings with water in filling our new 15x30 AGP and someone noticed what appears to be a bulge at the bottom of one of the spans of steel. It is between a side buttress and the first upright making the turn to the round end about 6 inches up from the track and spaning about 6 inches. We are level with ground, top rail and the same depth in water all the way around to within 1/16". No one noticed any damage to the wall when we installed it. We have noooooo idea what to do. Does anyone out there?

Shelley