Can someone explain to me the concept behind the new sewer boom. I'm on a 3 day shakedown trip in my new BH and during my walkthru the tech just pointed it out and acted like he didn't like it. I assumed I would just swing it out and there would be a connector to attach a sewer hose to and that would be that. When I managed to get the cap off the end of it a short blue hose slid out with a fitting on one end and nothing on the other. What the heck am I supposed to do with this? There's nothing that references this in the manuals. I guess in the morning I'll dismantle the boom and just attach my hose to the outlet.