William,
Be sure the hose compartment extends all the way to the frame. If not, put an extension on it. I buy the cheapest WalMart 20 foot sewer hose and cut off 5 feet of it. More expensive hoses take up more room, and end up shorter. The red 90 degree and female coach connector screws on each end. By using a file, I enlarged the plastic opening to the storage compartment, so the 90 degree end fits through the opening. Now I can keep both ends on the hose and store the 15 feet of hose in the compartment. This makes it easy to empty at a dump station or hookup at a park. I only hook up to dump when the tanks are full, then put the hose away. Thus, limiting the UV exposure, that shortens the life of the hose. Since the hoses are inexpensive, I can replace them every year or as needed. Because the hose is 15 feet long, I can usually stop near the dump pipe. For those few time when the dump pipe is more than 15 feet away, I keep a 20 foot extension hose and connectors in a 4 inch PVC pipe with caps, in the bay. It has worked for me for 18 years of Beavering.
Larry