Hot Water Tanks with Anode Rods
I don't know why this just came to mind during camping season but when winterizing, I've always drained the hot water tank, flushed it out and put it on bypass before putting anti-freeze in my system. So the tank remains empty while in storage. So what prevents the inside of the tank from rusting when there's no water in the tank? There has to be periods of time where humidity and condensation form in the winter months meaning there's droplets of water that form on the tank walls. I always put the Anode rod back in rather than leaving an open hole but does the Anode rod still attract ions when surrounded by air rather than water?
