I use a clear 45 degree coupling between the RV connection and the hose. I have no idea what brand of hose I have, but I have 2 hoses just in case the sewer hookup is further away than one hose will reach. Both hoses are several years old.
I do not use any support for the hose and it works just fine. If I was a seasonal I would probably want a support.
I also have a Tornado in my black tank to keep it clean.
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