We are building a 12x31 pool with a 5x7 spa going length wise on one side, so that there would be 6' of water on one side, 1' spa wall, and 5' of spa water on the other side (steps will be after the spa on long side of pool). The seating will be along 2 outside walls and the wall closest to the deep end, but not along the longer wall inside the pool going lengthwise. l I asked my builder why there was less steel on that wall and he said he was making it 6" instead of a 1' to give us more room in the shallow end. Although functionally this makes sense, would this look weird from an aesthetic perspective, with one wall a different thickness from the other wall? I am a little concerned as I haven't seen a pool done like this and am trying to imagine it.