I have a dough boy above ground with a deluxe skimmer. The skimmer has a large visible crack in it, can I use fiber glass to repair it? Or. When I take the skimmer off I will be doing repairs to the wall. I will be cutting out a section and replacing it with a piece galvanized metal of the same thickness. Can I replace the skimmer with a standard wide mouth simmer which is more than half the price? Any opinion would be appreciated.