I must have ran through some very corrosive material last winter, because this past spring when I was going to get the propane tank refilled it was completely rusted. It was a Manchester 36 gallon tank that was powder coated and 90 percent of the coating was flaking off. I took the coach to Suburban Propane and had their guys look at it. They recommended taking it to an auto body shop, having it sand blasted and repainted. Tried three different places with the same results, "No way our we going to be liable if we repaint and it explodes in a week". So to the tune of $600.00, purchased a new tank. Installed it myself. Now the old tank is setting in my back yard, none of the local land fills will accept it.