Some parks are mostly or ALL FHP. Others are mostly or ALL EW. The more remote/wilderness the park is the more likely less/no FHP. Always have pretty easy to use dump. We have two "home" parks. Wilderness Lakes is most or all FHP. Idyllwild is the opposite. Just plan accordingly. We have gone to others and chosen the EW sites when FHP was available because of other positive factors for that site. When we take grandkids and don't have sewer, the "menfolk" must use parks facilities during the day. Everyone uses park showers. The two week limit on a stay has always been what determined when to dump. Never needed a honey wagon.