B+ motorhomes

Gene, I put a "winterizing kit" in ours. That way can pump the "pink{ stuff directly from the bottle into the lines and can winterize ours using less than a gallon. We were always advised to not put the pink stuff in the water tank because you'd never get the taste out of the tank. I just leave the drain open and even if some water is left in the tank and freezes it at least has room to expand. In the spring just throw the switch the other way on the winterizing kit and flush out all the lines.

Burlmart. In my experience "ext. warranty's" aren't worth the paper they're written on. They have too many loop holes to avoid paying for expensive things.