There is provided a fluid regulating device for use in regulating fluid in a fluid-using device, the fluid regulating device comprising: a receiver, to receive fluid under pressure from an external source, a vent, to vent fluid from the fluid-using device, and a regulator, operatively connected between the receiving device and the fluid-using device, to regulate a pressure of the fluid, wherein, upon fluid being received by the receiving device, the valve assembly directs the fluid to the fluid-using device at the regulated pressure.