Check Air Pressure In The Tank - Watts Premier RO-TFM-4SV Installation, Operation And Maintenance Manual

Membrane Replacement (Continued)
To be properly seated the tip of the Membrane must be below the
Note:
housing edge.
Step 6
After replacing membrane housing into clips, attach the green tube to
the elbow on cap using 5/8" wrench.
Step 7
The flow restrictor must be changed each time you change the
Membrane. Replace the existing flow restrictor with the new one by
removing the White Compression Nuts. Make sure the direction flow
arrow is pointing toward the faucet.
Step 8
Follow the Start Up Instructions.

Check Air Pressure in the Tank

Note:
Check air pressure only when tank is empty of water!
Check air pressure in the tank when you notice a decrease in
available water from the RO system.
Step 1 It is recommended that you drain the tank of water, and then
pump up the RO tank in order to ensure all water is out of the
tank. Air can be added with a bicycle pump using the schrader
valve that is located on the bottom side of the tank.
Step 2 Once all water in the tank is purged out, check air pressure of the
tank. If you added air to the tank, it will be higher than 5 - 7 psi.
Allow air out until you have 5 - 7 psi in the tank.
Tip of Membrane
Edge of Housing
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