The invention refers to a milking device and a method of handling a milking device. The milking device includes a milk-transporting member (1) having at least one teatcup (2) and arranged to transport milk from a teat of an animal to a milk-collecting member (4) during a milking state. A low pressure is connected to the milk-transporting member (1) for sucking the milk from the teat to the milk collecting member. A gas conduit (11) permits the introduction of a gas into the milk-transporting member. The gas conduit has a first end (12), which is a gas inlet member (15). The gas conduit has a second end connectable to a relatively low pressure for permitting a flow of a cleaning fluid from the milk-transporting member through the gas conduit during a cleaning state.