RVing has a big advantage over tent camping: a mobile restroom and kitchen. You get to take water with you and bathe and wash wherever you go. 

As RVers are self-contained and carry or connect to their own water supply, they also have to dispose of their wastewater in a responsible and legal manner. 

This leads to the question: Can you legally dump gray water on the ground while camping? 

The answers depend on what kind of land you are on and state laws, but we'll try to clear it up as much as possible.