In many inflation applications, such as tire inflation applications, it is highly desirable to keep water or other liquids from entering the target reservoir (e.g., end container, such as a tire), and to fill the end container with dry working fluid (e.g., air) instead of humid working fluid. This can be particularly desirable in applications where tire life maximization is desired (e.g., such as in tires-as-a-service applications) and/or in applications where the tire is being repeatedly inflated and deflated (e.g., in dynamic tire pressure control applications), because water in the tire lumen can contribute to increased tire degradation and tire imbalance. Thus, there is a need in the pumping field to create a new and useful inflation system with water management.