For many campers, always being able to have your own kitchen, shower, and toilet with you in a motorhome is a real luxury! When the level indicator on the wastewater tank is red, and the freshwater supply is running dry, though, it’s time to head to the next motorhome service station. Don’t worry, though! You'll empty your motorhome’s wastewater tank and fill your freshwater tank in the blink of an eye. Here, you’ll learn all you need to know about filling and emptying the tanks.