I've hooked up my RV sewer system as per the instructions above and I'm still getting a sewer odor. After connecting open the black tank drain valve. March 3, Some people leave the gray tank valve open until a day before they need to dump black so that the gray can partially fill. Reconnect the water line to the back of the toilet. The correct way to hook-up your RV waste disposal system to the RV Parks sewer system has been stated above but to review.
Men, always remember to put the seat down after use.
Monte Hicks. Recreational vehicles are designed for "boondocking," or camping without hookups.