Operating a bar is no easy feat. Not only are the hours long and the patrons sometimes a headache, a bar owner needs to be a good business man. Beer is not just fun, it’s business. It takes more than a love of beer and good times to run a successful bar. One of the staples of a profitable bar is draft beer. However, it’s easy to let those profits slip away one spill at a time. Fortunately, there are some ways to control the flow of beer and limit the amount you are losing.