In my case, I have two 10' sewer hoses, with identical connectors on ends, and a elbow that connects the hose into the campground sewer connector pipe. I can use either one 10' section, or connect them together for longer runs. The extension in my pictures is not but about 10" and is just to the the hose connection outside the bin. Otherwise the flexable sewer hose would have to connect inside the bin. You can get a kit with the hoses and elbow at about any Walmart or RV sales for about $25 - $35 dollars, depending on brand.
