When in La Paz Valley, Arizona, there are several convenient options for dumping your black and grey water tanks.You can find dump stations at Flying J Travel Plaza, Foothills Self Storage, Loves Travel Stop #349, and Yuma Civic & Convention Center. Most dump stations are near popular landmarks and have access to gas stations, restaurants, and other services.Some locations listed in this article are the nearest of their kind to the starting point, and the actual drivable distance could exceed 200 miles.