my wifey lol would like me to add an "indoor" shower to our pop up? ive seen some rather "strange" desgns? lol ive seen slightly elevated wash tubs with a 90 degree fittin on bottom an jus hose run under galley for drain thru wall??? I figured hey....its removable? lol. I plan to purchase one of those add a rooms in the near future. and jus shower out there in a shower tent. but ..with that bein said how do you contain and collect the water from an outdoor shower setup? I realize how ignorant that sounds lol but I simply don't know??