Has anyone noticed that the lines at the beer vendors are shorter?

You can thank TurboTap!

"I've been looking for something like this forever," says Curt Radle, director of concession operations at Wrigley Field, where the Chicago Cubs play. Though he declines to say how much beer pours every season at Wrigley, Mr. Radle says the ballpark has one of the sports world's busiest beer-concession businesses. Since he installed TurboTap, he says, beer costs have fallen between 3% and 5%. In about half a season, the devices have already paid for themselves, he says."

For the moment, he's running the taps at about half their top speed. He says he might gradually ratchet up the speed by adjusting the pressure of the carbon dioxide, but he's in no hurry.

"People get their beer here fast enough," he says, adding that it was the increased yield per keg that persuaded him to install TurboTap, not the promise of a faster pour. Stadium vendors say they're getting six to eight additional cups out of each keg -- or $30 to $40 in added revenue -- since TurboTaps were added.

With a beer in each hand, the 22-year-old Cubs fan Ernest Walther stood in the centerfield bleachers on a hot summer night and said he was impressed with how quickly the beer had been flowing. "My sister's been getting them," Mr. Walther said, nodding at his cups, "and I noticed she's been fast as hell."

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