- If you need to dump your black, gray water, or fresh water in Moravia, Iowa, there are four dump stations located nearby.- The Davis County Fairgrounds and Marion County Park offer dumping facilities for RVs. They provide a hose for flushing tanks and a trash bin for waste disposal.- Love's Travel Stop also has a dump station available, as well as diesel fuel, snacks and drinks, restrooms, and showers.- Thomas Mitchell Park is another option. It's a quiet location with easy access to the dump station, but it does not have any additional amenities.