I've been reading and thinking about upgrading from my Intex Frame pool. I may have a grasp on the salt generated chlorine. Maybe a salt pool is probably not a good thing for an above the ground pool in MI? I belive that corrosion is the major problem of ag pools. Salt water is more corrosive than plain h20? I think I understand that resin is not corrosive. (But a mostly resin pool is very expensive and out of my budget.) And that corrsion accures when moisture hits metal. Some pools have stainless steel side panels where the pumps and filter go thru the wall. Why is this better? We live in a state that has snow and freezing temps 1/2 the year, I imagine the climate would play a part in what kind of pool you would choose. Do most pools rust from the bottom or where the skimmer and filters connect? I know that when you park a car outside for 10 years something is eventually going to blow out. There has to be ways to slow the failure down..? Thanks..Kimrst