I recently purchased a 2020 Flagstaff MAC 627M, it has a hot/cold water, a internal shower, and a toilet inside the popup. The toilet has a very small holding tank and the grey water has a drainage port right next to it. What is the best solution for disposal if I am staying at a campground for a week? The toilet will be for absolute emergencies, however, I see the hot/cold water being used regularly. Any suggestions? Is there an attachment for the drain port to dump into one of those portable waste totes?