Method of changing a transportation tube for a beer dispensing system

A method of changing a transportation tube for a beer dispensing system, comprising:

• moving a lever of a coupler from an engaged position to a disengaged position, wherein, in its disengaged position, the lever moves out of contact with a fitment of the transportation tube disposed in a bore of the coupler thereby releasing the fitment to move upward within the bore and away from a keg valve assembly such that the fitment of the transportation tube releases a keg valve assembly thereby preventing beer flow from the keg through the transportation tube, further wherein moving the lever to its disengaged position positions the lever away from the bore to permit unrestricted access thereto;
• removing the fitment from the bore through a top end of the coupler;
• removing the transportation tube from a faucet;
• disposing of the removed transportation tube;
• inserting a beer dispensing end of a new transportation tube into the faucet;
• inserting a fitment of the new transportation tube through the top end of the coupler and into the bore of the coupler;
• and
• moving the lever of the coupler from its disengaged position to its engaged position, wherein, in its engaged position, the lever moves into contact with the fitment of the new transportation tube and pushes the fitment downward within the bore such that the fitment opens the keg valve assembly thereby facilitating beer flow from the keg through the transportation tube.