- Unity, Wisconsin offers several convenient dump stations for RV travelers in need of waste disposal.- Sandy Hill Campground is one option, providing dumping facilities for black water and gray water, as well as access to fresh water and a hose for flushing tanks.- Pine Harbor Campground also has a dump station available, along with an RV trash bin for easy waste disposal.- For those near Van Boxtel RV Center, they offer a dump station as well.- Lastly, Lake Wissota State Park provides dumping services for visitors exploring the area.