In post #5 you kind of imply you want to dump the waste into a septic system? You really don't want to do that simply because the quantity of water is not desireable. If you mean a municipal septic, that still doesn't make sense unless there is some 'STUPID' code that says you can't dump to a storm sewer or even on your lawn. As a modification of MarkC's comment about the rolled up waste hose you could even punch holes in it and seal the end to distribute the dump over whatever length you want.
Al