On first outing with our Rockwood 2504s, was wanting to use the flush, but has sign that says, (see picture) what does this mean, they go over stuff so quickly at the dealership, thanks
Open your black tank gate valve into a dump site when using the tank flush feature. If you don't, stuff may backup through your toilet and shower drain. Saw it happen last year when a fellow camper failed to open his black tank gate valve. Made a foul mess in his trailer