No freshwater drain valve?

Is it possible that my 2006 Coachmen Freelander doesn't have a freshwater tank drain in it? I've crawled under there multiple times looking for something that looks like a drain valve at a low point I could open, and I can't find anything. My freshwater tank is apparently in my bed platform (not visible from the undercarriage at all) and all I see coming out of there are a series of the ends of clear plastic tubes. Does anyone know what those tubes would be? Just trying to avoid having to dismantle my entire bedroom trying to get into that space...seems like they would have made it easier than this...thanks in advance fr any help you can offer.