Anyone using a cassette toilet in their B?

(No experience with a cassette toilet) I think in an RV with a "full" water system sinks/shower/toilet - using the system as designed is the easiest. That being said, as a fellow Michigander, I know winterizing can be a pain - many of us do that multiple times per year, depending on whether we head south for a winter vacation (and just how far south you go). It's why I opted for a self-contained freshwater system for the kitchen sink; and a "Luggable Loo" with kitty litter as our middle-of-the-night potty. No more worrying about how cold it will get at night.