How Much Air Pressure Should Be in My RO Tank?


How much air pressure should be in my RO tank?



 In an empty reverse osmosis tank, air pressure should be 7-10 psi.  In a full/heavy tank, air pressure should be 35-45 psi.


To add air pressure to the tank…

  1. Turn off the feed water supply to the reverse osmosis.

  2. Drain the water from the tank completely thru the faucet.

  3. Close the ball valve on top of the tank.

  4. Find the valve stem located on the tank.

  5. Use an air pressure gauge to check the current air pressure.

  6. If you need to adjust the pressure, use an air compressor or bicycle pump.

  7. Fill the tank with 7-10 psi. of air.

  8. Re open the tank ball valve.


If you have any other questions about your RO system please feel free to contact us.