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
Please use a separate water hose for back flushing, not your regular hose used for city water. I usually have a green garden hose for the back flush, or if I do use an old white regular water hose, I put black electric tape on both ends so I know to only use it for back flushing.