I had one of those, and it was a pain. it has been replaced with a threaded coupler that simply screws over the end of the hose.
-- Dan Meyer
I vote for that type as well! Although the threaded couplers always seem to be hard to get the hose on .... the hose will find a way to slid off at the worst time possible.
LOL Kevin being cheap can come back to bit you and when dealing with raw sewage that may not be a good thing! Dont ask me how I know that you should seriously consider purchasing some large hose clamps to add some extra security to the one you purchased - they IMHO are worth the extra pennies! :-)))))