A fixed and/or stationary modular unit consists of a hydraulic fluid tank and a pressurization pump. A compressed gas transportation system consists of a set of cylinders. Each cylinder has a charging port and a dispensing port. A valve is connected at the dispensing port of each cylinder. Each of the valves at the dispensing ports of the cylinders are connected to one another. After an idle period of dispensing activity, the valves on the dispensing ports of the cylinders are opened and compressed gas is bled from one of the cylinders into at least one of the other cylinders in the set until the at least one of the other cylinders reaches a desired dispensing pressure. Hydraulic fluid is pumped from the tank into the cylinder being bled from to maintain a substantially constant pressure within the cylinder.