a bi - directional pressurized system with devices for and configured to mitigate issues associated with leak and creep phenomena at various stages throughout the system , including valves and controls to distribute a leaked amount of fluid prior to delivery to a pressure - sensitive destination and a pressure relief valve to bring an initial pressure within an acceptable range for distribution to reach a target pressure is disclosed . a startup method for mitigating leakage of the system during a rest phase , including selectively reducing the initial pressure upstream of a pressure - sensitive destination , is disclosed .