Kegs of beer may be connected in parallel alongside one or more valves that connect to a flushing fluid supply. When a beer is selected, the associated beer valve opens so that beer can be dispensed. After a pour is completed, the system automatically flushes the beverage tubing line clean by opening a flushing fluid valve, allowing flushing fluid to cleanse the line. This flushing of the line enables the system to dispense a beer from a recently flushed line for each pour, and/or dispense many different beers because leftovers of a beer from an earlier pour do not contaminate the line for later pours. The system is also configured to measure the time poured based on information from a sensor in a dispenser (e.g., a tap handle). The time poured and a measured flow rate are used to calculate the total price to charge a customer for the beer.