Reverse Osmosis Water Storage Tank Air Pressure

Locate the pressure valve under the blue cap on the tank.

Reverse osmosis water storage tank air pressure. Shut the reverse osmosis faucet off and let the tank fill up for 3 hours. Re open the tank ball valve. Reconnect the yellow line at point y. The air pressure starts to increase though as the water is pushed into the butyl bladder.

Once the air pressure inside is about 2 3 of the incoming water pressure the water flow to the tank stops. Continue to enjoy your reverse osmosis system as usual. The system shut off valve sold separately will automatically turn the ro system on and off as needed. Ro expansion tank 4 gallon nsf certified compact reverse osmosis water storage pressure tank by tankro with free tank ball valve 4 5 out of 5 stars 1 001 38 18 38.

Use air compressor or bicycle pump to re pressurize the 4 gallon tank to 5 psi and 7psi for the 14 gallon tank. Like we mentioned above an empty ro tank has pressure of 6 to 8 psi. If your feed pressure is 60 psi the membrane will continue to filter water and fill the storage tank until the compressing air within that tank reaches 40 psi. The pressure in your reverse osmosis storage tank may too low or too high.

Generally though when an ro tank is empty with no water inside the air pressure should be around 7 to 10 psi. A pressurized storage tank for reverse osmosis product water is recommended for its ability to deliver reverse osmosis water to the faucet using air pressure within the tank. The air compartment is pressurized and as you open the tap the air pushes on the water and it flows out through the tap. Disconnect the yellow line from the tank valve.

Return the tank to its original position and turn the water supply back on. A water compartment and an air compartment. Use an air pressure gauge to check the current air pressure. The reverse osmosis system is equipped with a sensory valve that halts the production of water when the pressure in the tank reaches 2 3 of the line pressure.