Camp Grayling, which is part of the Army National Guard, offers both potable and non-potable rinse water at their RV dump station. To reach the dump station, take I-75 to 4 Mile Road (Exit 251) and head west on 4 Mile Road. Then, turn right onto Military Road and continue until you reach M-93. Take a left onto M-93 and follow it until you reach the Camp Grayling Security Checkpoint.
RV Dump Station
