Page 15
Membrane Replacement
Membranes have a life expectancy between 2 and 5 years, depending on the incoming water conditions
and the amount the RO system is used. This reverse osmosis membrane is critical for effective reduction
of total dissolved solids (TDS). The product water should be tested periodically to verify that the system
is performing satisfactorily.
Normally, a membrane would be replaced during a semiannual or annual filter change. However, if
at any time you notice a reduction in water production or an unpleasant taste in the reverse osmosis
water, it could be time to replace the membrane. Premier recommends replacing the membrane when
TDS reduction falls below 75%
.
NOTE: A water sample may be sent to Premier for a free diagnosis of your
membranes performance.
To send a water sample, use two (2) clean
containers and fill ½ cup of tap water in one container and ½ cup of
reverse osmosis water in 2nd container. Clearly label each sample.
Send the samples to the address listed on the cover of this manual
attention “Water Samples”. Premier will test the water and mail or
call you with the results.
Step 1:
Turn off the incoming water supply to the RO by turning the needle
valve on the adapt-a-valve clockwise until it stops. (Follow the green
tube away from the RO system to find the adapt-a-valve.)
Step 2: Open the RO Faucet and allow water to drain from the tank until it is
completely empty.
Step 3:
Remove the horizontal membrane housing on top of the unit by
turning it counter clockwise to loosen.
Step 4:
Pull firmly on the yellow RO membrane to remove it from the
housing and discard.
Step 5: Lubricate the O-rings on the new membrane with a water soluble
lubricant such as KY Jelly ®. Insert the end with the two black
O-rings into the cap. Twist the membrane as you push it firmly into
the manifold.
NOTICE: Before re-installing the membrane housing back on to the
system, check O-ring on the housing to make it is still in place
and lubricate with water soluble lubricant.
Step 6: Replace the membrane housing onto the cap by turning clockwise.
Tighten securely.
Step 7: Follow Start up instructions on page 12.
This reverse osmosis system contains a replaceable component (the RO membrane) which is critical to
the efficiency of the system. Replacement of this reverse osmosis membrane should be with one of identi-
cal specifications as defined by Premier to assure the same efficiency and contaminant reduction perfor-
mance.
NOTICE: This is a good time to check the air pressure in your storage tank. For instructions please
see page 16.
Step 12: Follow Steps 8 through 10 in the Six Month System Maintenance (Page 13) for startup
directions.
