General Electric Profile Smartwater Ultra Plus Reverse Osmosis Membrane Logo
Posted on Apr 27, 2009

I have a ge reverse osmosis filtration system and recently lost pressure and tank capacity. I have only had the system about a month and my water has been tested fine. I did leave town for 10 days, could this be a factor? I replaced my prefilter, with no change. Everything checks out as far as water pressure and waste drainage. I am currently sanitizing the whole system and going to reuse the same filters as they are not old. I am out of ideas short of shelling out $75 for new filters.

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  • Posted on May 01, 2009
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Joined: Apr 27, 2009
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Make sure that all valves are in the open position.
Try to recharge the water storage tank. Here are the steps to follow.
* In General: When any type shut-off valve handle is positioned so that it is parallel or in line with the tubing that enters the valve, valve is OPEN. When handle is turned perpendicular to tubing that enters valve, valve is CLOSED.

Necessary Supplies:
1) Tire Gauge marked in 5psi increments (ie 5, 10, 15, 20psi, etc.)
2) Bicycle tire pump for standard type bike tire valve
To recharge RO system tank:

1) Close cold water feed valve (valve located at some point along the cold water line from street plumbing).*
2) Leaving RO tank valve on, turn tank on side & locate valve stem on bottom side.
3) Remove stem cap.
4) Drain all water out of tank through open RO faucet into sink. (Continue to leave RO faucet open throughout procedure)
5) If current tank pressure is insufficient to empty tank, apply tire pump to valve stem and pump 10 – 15 times. Exit flow will increase and then gradually decrease as pressure equalizes. Do not overcharge internal bladder of tank during this
procedure.
6) Repeat step #4 until tank is completely empty. (Tank is empty when additional pumping produces no more water)
7) At this point, adjust EMPTY tank to exactly 7psi. (Gauge reading midway between 5 & 10psi is sufficient)
8) Turn off RO faucet.
9) Replace cap on valve stem and reposition tank in upright position.
10) Open cold water feed valve.*
11) System water is useable immediately, however, tank will take 3-4 hrs to completely refill.

www.FreshWaterSystems.com: The Water Super Store: 1-877-335-3339

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Typically a reverse osmosis storage tank should have a precharge of approximately 7 psi. Depending on the make/model of your tank it may have a higher charge currently which would cause the tank to not fill. There should be a schrader valve on the bottom or side of the tank. Using a tire gauge and bicycle pump you should be able to check the current pressure in the tank and adjust it up or down to 7 psi.

reverse osmosis storage tanks: http://www.freshwatersystems.com/c-32-reverse-osmosis-storage-tanks.aspx

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