^ +1
That's how it's done!

Draining the bottom should drain everything. You ever took a funnel, rubber hose, and some beer. Well, get the hose connected to the bottom of the funnel, then turn the funnel upright. Then pour beer in the funnel. Connect the one end of the hose to your mouth, and then have one of your friends lift it as high as they can above your head....you take it on from there.

Disconnect the bottom hose if it makes it any easier. Like mine's, I have to because it doesn't have a drain plug.