Tinker Air Force Base has potable water and non-potable rinse water available. To get there, take Exit 9 (Air Depot Blvd.) on I-240 and drive about 1.5 miles to reach the gate. At the light, turn right and go through the RV gate. Then, make a left and another right. The FamCamp, where the RV dump station is located, will be on your left.