Sunfield, Michigan, offers several options if you need to dump your RV's black and grey water.- You can visit the Portland City Dump Station, which provides fresh water filling facilities and a hose for flushing tanks.- Another option is Alice Springs RV Park Campground, which offers a waste disposal site and trash bins for easy clean-up.- Fairgrounds also has a dumping station near the main entrance with easy access and ample space for larger RVs waste disposal.- RVers can also consider Welcome Woods Campground, where they can safely dispose of their waste and enjoy the scenic surroundings.