Abstract: The invention relates to an assembly of a drink dispenser (2) provided with a chamber (4) for accommodating a containing carbonated drink, a lid (5) for closing the chamber, a dispensing head (13) for opening and closing a dispensing line (10) and a container (3) containing carbonated drink provided with a drink dispensing opening (8) and with a dispensing line (10) that connects the drink dispensing opening head, wherein the container is provided with a pressure medium feed opening (21) and with a reservoir (17) with a pressure medium therein which reservoir is provided with a pressure line coupling (20) wherein the lid is provided with a pressure line (22) with, at one end, a reservoir connector (23) for connecting to the pressure line coupling (20) of the reservoir and with, at the end, a pressure medium feed opening (21) of the container, wherein the reservoir connector and the pressure medium feed connector are brought into fluid-tight engagement with the pressure line coupling and the pressure medium fe