If you want your camper, travel trailer or motorhome to smell good, you need to learn the best methods for cleaning and sanitizing your coach's waste water tank. A sewer tank that is not well maintained breeds bacteria that create horrible odors throughout a coach and also cause clogs in plumbing systems. Both of these things make using an RV a miserable experience, and both can lead to expensive repairs as well. This job is not hard to do, takes relatively little time, will keep your RV smelling good, and will keep your plumbing system functioning properly. The good news is that you won't even have to get your hands dirty if you follow the tips in this article. Protect Yourself What comes out of your sewer hose is toxic, so you need to protect yourself and your clothing by doing such things as wearing rubber gloves, shoe covers and protective glasses.