Anderson Camp is a popular dump station near Heyburn, Idaho, offering black and gray water dumping services. They also provide fresh water and a hose for flushing tanks. There's also a trash bin for waste disposal.The Twin Falls / Jerome KOA is another option for dumping black and gray water. They have a potable water source to fill up your RV's tank.Nat-Soo-Pah Hot Springs & RV Park offers a convenient dump station with easy access. They also have potable water available.Massacre Rocks State Park has a dump station available for travelers passing through the area. It provides black and gray water dumping services, potable water, and a rinse hose.