There is a non-potable rinse water available at the RV dump station located at 2nd Avenue SW & 1st Street SW. To get there, you need to take Exit 203 from US-218 and go 3.6 miles east on IA-3 to the downtown area of Waverly. Then, turn right (south) on 1st Street SW and continue for 2 blocks until you reach the dump station on the left (east) side of the street.