So I'm probably nuts but my background is aviation and I'm used to seeing metal Zinc Chromated. Plus having uncoated metal where it could contact water (in the case of leaks) seems like a bad idea. I didn't want polymer walls because I was concerned about the long term durabilty of plastic (maybe completely unfounded). We're stalled on the pool right now and I'm VERY tempted to buy some cans of cold galvanizing spray paint and coat the walls. Bad idea? Good idea? Talk me off the ledge?