The Ideal Pressure Range For the vast majority of residential reverse osmosis systems, the optimal air pressure in the tank is approximately 7 to 8 PSI (pounds per square inch) when the tank is empty, meaning there is no water stored inside. To achieve the best performance, the air pressure should be roughly 8-10 PSI lower than your home's incoming water pressure.
Adjusting Air Pressure for Optimal RO Tank Performance
Consequences of Incorrect Air Pressure When the air pressure in the tank is too low, the bladder remains over-inflated, leaving insufficient space for water storage. How to Check Your Tank Air Pressure Checking the pressure is a straightforward process that requires only a simple tire pressure gauge, the same kind used for checking car tires.
When the RO system is producing water, it forces water molecules through the semi-permeable membrane and into the bladder, compressing the air inside. It is best to check this when the tank is completely empty to get an accurate baseline reading of the air charge, rather than measuring water pressure which fluctuates during operation.
Adjusting Air Pressure for Optimal RO Tank Performance
Understanding the air pressure inside your reverse osmosis tank is the single most important factor in ensuring consistent, high-quality water flow throughout your home. This results in a very short "draw time" where you might get a glass of water before the system shuts off, followed by a long wait for the tank to refill and re-pressurize.
More About Reverse osmosis tank air pressure
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More perspective on Reverse osmosis tank air pressure can make the topic easier to follow by connecting earlier points with a few simple takeaways.
