That is a great question... even if you could store the hose in the bumber there is no room for all the fittings. I attched a rubbermaid-like tote, but alot stronger with a lockable lid to the bumber using u-shaped bolts ( the same ones that are probably holding your spare tire to the bumber ). This has worked out GREAT for me. I can fit all 20' of hose and all of the fittings. Another thing I like about it, is that the hose is not inside the camper at all. If you would like to see a picture of how i did it feel to contact me. Good luck