PS-5 Reverse Osmosis Drinking Water System
Troubleshooting/Maintenance
1931 205th Ave NW
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Ramsey, MN 55303
Phone: 866-405-1268
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Fax: 763-427-5665
www.watercontrolinc.com
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4. Is storage tank operating correctly? Open the faucet until the water stops flowing in a stream. Try
to pick up storage tank. If it is heavy like a bowling ball, it may not be working correctly. If it is light
like a basketball, make sure that the tank valve is open.
To test a heavy tank, close feed water supply, close valve on top of tank, open and then close the
faucet to relieve any pressure in the system. Unlock the strap buckle. Disconnect the tubing from
the tank valve. To disconnect the tubing the collet (colored ring that tubing goes through) needs
to be pushed towards the valve until it bottoms while simultaneously pulling the tube out of the
fitting. This may take some effort, especially if it has been some time since it was installed. Make
sure that the collet stays fully depressed, all the way around into the fitting. Some jiggling and/or
twisting of the tubing or tank may help. After the tubing has been disconnected from the tank
valve, point the valve opening into a bucket. Open the valve but be prepared for a discharge
similar to a fire hose. If you get a high-pressure output for more than 1 gallon, your tank is
probably healthy. If you do not get a high-pressure output or if only a small amount or water is
discharged, and your tank is still heavy, then your tank has failed. Adding air pressure at the
Schraeder valve (an empty tank should be pressurized to 5 psi) may be tempting and it might get
the tank to behave correctly temporarily if the bladder has developed a slow leak. This is not
recommended since it only very rarely works at all and is only a temporary improvement, if any.
5. Is the postfilter clogged? If the tank is full and delivers water when it is not connected to the
postfilter but very little or no water is delivered to the faucet, the postfilter may be clogged.
Replace the postfilter.
