I'm looking into getting a Homebrew keg and I have a few questions. 1) I have a kegerator set up already, I have to CO2 tank, tower, lines for the tower and gas. And a standard keg tap. So what else do I need other than the Corni keg. 2) how do you put the beer into the keg. I know this might be a stupid question but I just want to ask. 3) how do you carbonate the beer. I know you use the co2 but how? Also does the keg have to sit a while like you do bottling or is it ready to drink right away? 4) and finally when the keg is empty how do you release the pressure in the keg? I know some of these questions may seem dumb and some I might already know the answer for but I just wanted to ask and make sure. Thanks for the help!!!