The taps at one’s favorite brewery or beer bar might look like a magic wall that beer flows from when the bartender pulls the tap handle, but there is no magic show. The tap wall is a pretty display of decorative tap handles and shiny stainless steel or brass faucets, but behind that wall is where you will find a series of kegs, hoses, couplers, valves, applied gas, and of course, beer. This is the side that the customer never sees, but it is responsible for making sure beer hits the glass when the tap handle is pulled.