[Dizzy-Dick]

I got a question that I, so far, haven't been able to find an answer to. I can find no way to drain my fresh water tank in my RV. All my other RVs had a valve and a way to drain the fresh water tank. The one I have now doesn't seem to have one. I have a Newmar Dutch Star diesel pusher. It seems to have all the whistles and bells but I can't find a way to drain the fresh water tank. Does anyone have any ideas except for using a hand pump down the fill tube? BTW, the fill tube is just a hose connection.