There are several advantages of a hydro pneumatic system:
Their presence ensures that no heavy overhead water tanks are required on the top of buildings.
Specific hydro pneumatic system design can provide water at certain pressures unlike a regular water supply system.
Energy consumption of these systems is less than that of a traditional system.

There is only one downfall to the hydro pneumatic system and this is if there is no power, there will be no access to water as the pump will not be able to work. It is often advised that backup power is considered when installing one of these systems. It is important to ensure that only a professional plumber or water system supplier handles the installation of your hydro pneumatic system.