Owners manual
CHANGING THE MEMBRANE
Replacement TFC membranes come with complete changing instructions when ordered.
TROUBLESHOOTING
LEAKS
1) Filter sump: The O-ring in the sump may not be making firm contact, have dirt or hair on it or be stretched.
Clean or replace O-ring and tighten sump to make firm contact with cap.
2) Fitting Connection: Compression - Check that the fitting is tightened with all parts in proper place (refer to Fig. #8).
NO WATER OR SLOW FLOW
1) The system requires 2 hours from start-up to be fully charged and will take longer if it is hooked up to a
refrigerator ice maker.
2) The storage tank can hold up to 2.5 gallons and with heavy use can be depleted to zero. If this occurs, the
system will be fully charged in 2 hours and it becomes a recurring event an additional tank may be added, or a
higher production membrane may be needed.
3) Check colored tubing for correct connections.
4) Check the saddle valve at the water supply adapter is turned all the way counterclockwise for feed water and
that there is no restrictions along the green tubing.
5) Check for restrictions along the blue and yellow tubing and the storage tank ball valve handle should be parallel
(open) to the valve body.
6) Check the pre-filter, if it has a heavy dirt load it can restrict water flow to the system. Change sediment pre-filter
regularly.
7) If the storage tank is heavy with water and will not empty it has lost its air charge and needs to be serviced or
replaced. The air charge in the tank should be 5-7 psi with the tank empty of all water.
CUSTOMER SATISFACTION IS OF PRIMARY CONCERN, PLEASE CALL OUR SERVICE
DEPARTMENT AT (310) 329-1945 IN THE EVENT THERE IS A SERVICE PROBLEM.
Notice: Your RO-5/system has been thoroughly tested and inspected for production, rejection, leaks and shut-off
functions at our factory. Therefore, it might have some water in it.
Warning: Do not use this system if feed water has biological contamination or of unknown source. For operating
parameters, please contact our technical support department.
For parts, accessories & replacements shop www.apexwaterfilters.com.
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