Just purchased a 1995 16 ft Casita
and took it camping in Tennessee this weekend. The temperature was 88+ degrees during the day with normal humidity for Tennessee. I never noticed any condensation from the ac unit. I looked underneath and there's a pvc drain tied into the gray water tank. We didn't use any of plumbing fixtures therefore the gray water tank was empty. I opened the valve and no water came out. The ac unit is located on the right side of the door on the front corner and appears to be a standard room window ac unit. Where does the ac condensation drain?