rust in pole box on camper

I've found over the years with the pole tube on our camper that the water is introduced when the poles are put away wet or with water inside them after heavy rain.
If we pull the poles apart and dry them thoroughly in the sun then we get no more corrosion.
Our pole tube is plastic sewer pipe with O rings both ends so no moisture can get in when the lids are fitted.

Adam
How old is your camper ?

Personally do not worry too much about it..
Oxidation means they will grip better, when extended and locked.
Our Camper is a 2001 model Trak Shak, and all my poles have oxidation at various stages, and I really do not care. They are often packed up wet.
You may find a light scrub with a scotch brite may help, if you are worried about the looks..

Have you tried using a rubber seal, on your pole holder, or simply put it into a high dry location, on your camper ?
I know that Inox spray will work, but you may loose the ploes ability to lock, at heights, and load, as everything is a bit greasy.
Cheers
Bucky