13
Preventive Maintenance
These recommendations are intended for maximize efficiency of RO water production by your system.
1)
Filter maintenance
a) It is OK to store filters shrink wrapped on the shelf for several years.
b) To store the sealed, unopened filter, we recommend that it be kept in an air tight container. This prolongs the shelf life of the
carbon filter and avoids having the filter absorb any possible odor from the air.
2)
Membrane maintenance
a) The dry packed membrane usually has a two-year shelf life. To prolong the shelf life, we recommend keeping unopened dry
membrane in a refrigerator.
b) Once the membrane is in use, we recommend running the RO system every day for at least 10-15 minutes (about 1 gallon or
4 liters of drinking water). This helps to maintain the membrane performance.
c) If the RO system is not used for over a week, drain the storage tank first. Then fill the tank and drain it twice. Your RO system
is now ready to use again.
d) This reverse osmosis system contains a replaceable component critical to the efficiency of the system. Replacement of the
reverse osmosis component should be with one of identical specifications, as defined by the manufacturer, to ensure the same
efficiency and contaminant reduction performance.
NOTE
If it is too tight to open the housing you may try unplugging the fitting between red tubing and the system in order to reduce
the air and water pressure inside the housing.
3)
Filter and membrane change procedures:
a) Shut off the water supply.
b) Turn off the tank ball valve by turning it 90 degrees.
c) Open RO faucet to the continuous flow position to relieve pressure.
d) Slide in the housing wrench. Use one hand to hold the system and the other hand to turn the wrench clockwise to open the
housing.
e) After opening the housing, remove the used filter and put the new filter into the housing. Make sure the o-ring is back in place
and turn the housing counter-clockwise to close.
f) Repeat previous step to change second filter.
g) Turn on the water supply and make sure there are no leaks.
h) Let the water drip from the faucet for about 10 minutes. If the water flow is less than 1 cup (8 oz. or 240 ml) per minute, it may
be a signal to change the membrane.
i) Membrane change procedures:
• Unscrew the membrane housing cap.
• Slide out the used membrane and discard.
• Insert the new membrane into the housing. The end with the two o-rings should go in first; to prevent leaks be sure it is fully
seated in the bottom of the housing.
• Screw the cap back onto the membrane housing, making sure o-ring is still in place.
• It may take 10-20 minutes for the new membrane to run at normal flow.
If the water flow is OK, then turn on the tank ball valve. After 1 minute, turn off the RO faucet and complete the filter change
procedures.
