Not to ask a stupid question, but hey why not...

Why would it matter if there was dry rot on the tires? You're putting a tube in it, and they don't need much pressure to work in the sand.

Also, does anyone here do anything to preserve the life of the tires? Armor All or something to that effect. Does covering them (as in, with a tarp) help for long-term (winter) storage, or is it best to bring them indoors?

Mike