A pin hole in a sewer hose is
If you've been following the CasitaForum, you know there are solutions for storing the hose and fittings... starting with a vinyl fence post. There's no way you'll cram all that in the stubby tube Scamp
rivets on the front of the trailer (which is fugly). You'll figure out a solution that works the best for you... which means you'll either dump everything into a closed tub that you put in the trailer or tug... or mount the "fence post" somewhere on the trailer frame or rear bumper.