Hello all. I have an AGP that has some of the bottom rim pieces that are corroded through. I'd like to replace them as I replace the liner. This pool is supposed to be 28' round. The rims are 1 inch wide and 48 inches long. They slip into a piece that is attached to the bottom of the upright. I have no idea of the age or brand of the pool. It looks similar to the 24' we had ages ago with a 4' panel placed into it to make it 28'. Thanks for any suggestions.