A reverse osmosis system is a very common water filtration equipment. The idea is to use water pressure creating by the pump pushing through the RO membrane. An only water molecules can pass through the membrane, and leave the Pathogen or Source of pollution on the other side. The process is very slow. The common system needs an hour to produce 10 Liter of water. 

Benefits of Potable Water Pressure Tank Filling with Nitrogen Pre-Charge

Aquasky's pressure tanks are filled with 100% Nitrogen, and we are the only tank manufacturer is doing it now. 
Air is 78 percent nitrogen, just under 21 percent oxygen, and the rest is water vapor, CO2, and small concentrations of noble gases such as neon and argon. 

Aquasky Pumplus APT-450 is the 450 liters(120Gal) pump tank. All PumPlus tanks are manufactured at our ISO 9001:2008 registered facilities. NSF listed as the highest standard for pressure tank. IAPMO and CE certified for the safest pressure vessel in the market. 
This new product has launched on the market.

What Is A Pressure Tank?

A pressure tank (or pressure vessel) is a metal container that can vary in size from 1 L to 3000L. Inside the tank, there is a rubber diaphragm that separates the water room and air room.

How does A Pressure Tank work inside a Pump System?
When the tap shuts, then the water stops flowing and the pressure in the system builds. When the pressure reaches the “off” setting of the switch or controller, then this turns the pump off and the pipes remain pressurized.