Dumping a black tank of MH that has macerating toilets

can you find something at home depot, etc., that is smaller than a stinky slinky but larger than a garden hose? most of the advantage of a macerating setup is not using a stinky slinky.
I drained my black tank with a sewer solution and a macerator pump thru a 3/4 " or thereabouts hose that came with the SS so don't know why that wouldn't work unless macerating toilets don't work as well?
bumpy