I live on the Texas gulf coast. Had an Intex 18x52 ultra frame. Used the pool for 2 summers and started noticing rust towards the end of the tubes where they lock into the connectors. When I took them apart I saw they were corroded pretty bad. Thank God I bought the extended warranty from Walmart. When I called them they had me send pictures of the damage. They said they covered that damage but couldn’t send the parts so they refunded me the purchase price. I’m about to buy a new one, so here’s my question. Is there some kind of paint I can put on the ends to prevent the rust from starting? Thanks.