When you need to dump your black and gray water tanks, visit one of the four RV dump stations near Weallup Lake, Washington.You can find dump stations at Port Susan Camping Club, Wenberg County Park, Rest Area - Smokey Point (Southbound), and Rest Area - Smokey Point (Northbound).Most of these stations offer fresh water and a hose for flushing tanks. Additionally, you'll find trash bins for waste disposal. Before heading out to your next adventure, make sure to properly dispose of any waste at these convenient locations.