we are parking our nomad 259LT in a campground for 4 months. we will have power and water, but no sewer hook up. we are thinking of using a tote-along tank for our gray, and black water. we have a dump station about 300 feet from our trailer. so it's not a big deal to haul the tote-along to the dump site. i just don't want to have to keep moving the trailer to dump. any opinions on the tote-along tanks?