The apparatus includes a housing having a dispensing location for liquid disposed above a repository for a liquid storage container. A pressurising assembly including an air pump supplies gas to pressurize the container and cause liquid to leave the container via a delivery tube. A replaceable flow assembly including a manifold 30 and a reservoir 18 conveys liquid from the delivery tube 16 to the reservoir and thence from the reservoir 18 to the dispensing location. The manifold has an underside which includes a riser tube connector 36 and a reservoir connector 40 to rigidly mount the manifold on the reservoir. An upper side of the manifold has an outlet 33 located directly above the reservoir connector 40. The manifold contains a chamber 58 configured to convey liquid from the riser tube connector 36 to the reservoir 18 and a connector 37 for feeding a second reservoir provided with a steam venting valve. A valve connector 47 connects the steam venting valve to an air passage 29 which travels through a lifting handle 46 to the reservoir 18 via the chamber 58. The flow assembly contains no check valves or bypass valves and is self-purging on replacement.