I have a new camper and It has a black flushing connection, never has a camper with this feature and now I was wondering what is the purpose of the black flush
We camp quite often and I've found that if I dump on my way into the campground instead of when I leave, there are no solids in the black tank from all the sloshing
No lines at the dump station either. After dumping the black tank I turn on the tank rinser and the water runs clear within 60 seconds
You obviously don't want your tanks to sit full for weeks on end but this works great for me