I use an old Rubbermaid hamper. It fits the two lengths of hose, sewer adapter, and the accordion hose ramp. Lots of holes on the sides to air out.
It goes in my truck bed, or in the TT bathtub, if I am tight on space in the truck.
2014 White Hawk 28DSBH
2012 F150 EcoBoost MaxTow
Reese 1200 WDH / Dual Cam Sway Control