Reverse Osmosis Filter Reservoir Pressure

ID: 163426

Description: Repressurize your reverse osmosis (RO) filter...

Steps:

1. Disconnect the filter from the main water supply
2. Typically this is a needle valve

3. Open the main valve to release the pressure from the reservoir/bladder.
4. Leave this open until you are ready to repressurize the reservoir

5. Remove the cap from the Schrader valve (or other) and connect an air pump
6. Most reservoirs have a standard Schrader valve
7. For a standard Schrader valve, connect a bicycle air pump to the valve stem

8. Use the air pump to (Gently!) force all of the water from the reservoir
9. Be careful to not over pressurize the reservoir/bladder! This may damage the filter!
10. (Gently!) pump your air pump as the water is drained from the reservoir
11. Continue (Gently!) pumping, to ensure all of the water is emptied from the reservoir.
12. Easy rule of thumb: if your pump has a built-in pressure gauge, generally avoid more than 10 to 20 PSI
13. Close off the output valve for the reservoir
14. For most RO unit reservoirs, this is a ball valve on the top of the reservoir

15. Release any over-pressure of the reservoir
16. The reverse end of most tire pressure gauges, a flathead screwdriver, or your car keys, are good tools to easily release pressure from a standard Schrader valve
17. Use your air pump to repressure the, now empty, reservoir
18. Most reservoirs operate between 5 and 8 PSI
19. Consult the owners manual for your specific filter to find the optimum operating pressure for the reservoir

20. With the reservoir repressurized to the specified pressure, reopen the ball valve
21. Fin.