[QUOTE=shawnpst1;57947]I like the idea of storing the sewer line outside. Has anyone tried mounting a sewer line carrier, like Valterra's product, on the bumper?[/QUOTE
Most of us have mounted our sewer line either under the rear carriage of the motorhome or bumper mounts...it all depends on preference.
This is how we store our sewer hose ... some use square fence post ...
and there are the commercial applications available.