Ok, straight from POR-15 tech. Water should not form in a empty POR-15 treated tank. Its like an empty plastic tank(lawn mower/weed eater/snowblower). Those I drain completely for storage Now I know.
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel
