I posted this thread on the Plumbing Forum, but it was suggested that I repost on this forum. Our pressure tank’s bladder has ruptured (water in upper chamber). Current model is 86 Gallon. The model just installed at a larger house is, I believe, 62 gallon. Must I replace with the same size or can I downsize? What size is recommended? Or how do you figure the right size? Thanks for your help.