Instructions / Assembly

This reverse osmosis system contains a replaceable component (the RO membrane) which is critical to the ef ficiency
of the system. Replacement of this reverse osmosis membrane should be with one of identical specifications as defi
ned by Watts Premier to assure the same efficiency and contaminant reduction performance.
6 Month System Maintenance
Watts Premier sells a fi lter change kit which includes all replacement filters
needed. Call 1-800-752-5582 or buy on-line at www.wattspremier.com.
Items needed:
√ One sediment filter (RED Label - 4 Stage Only P/N: 105311)
√ One carbon pre-filter (YELLOW Label P/N: 105351)
One carbon post-fi lter (BLUE Label P/N: 105341)
Towel to catch water from filter housings.
NOTE: Your RO module is equipped with valved heads which will automatically
turn off the water supply to each filter when the fi lter is released, thus
you do not need to turn off the incoming water supply at the Adapta-
Valve. The faucet must be off when filters are replaced.
Step 1 Place the towel under the RO module to catch any excess water that
drips out from the filters during the changeover.
Step 2 To make the removal of the fi lter housings easier, the heads & housings
may be lifted up to 90 degrees as shown in the pictures to the right.
Starting with the sediment fi lter (RED Label) push & hold the button
on the valved head and pull downward (from the head) to remove the
fi lter housing. Release button and discard old filter housing.
Step 3 Make sure to remove the cap off of the new replacement filter. Insert the
new filter housing into the valved head until you hear an audible “click”
(the button does not need to be pressed to install new filters).
Step 4 Repeat this procedure for the 2nd and 4th housings. When finished
flush your tank completely once to remove any natural carbon fi nes
from the RO system. Check over the next 24 hours to ensure no leaks
are present.
Membrane Replacement (GREEN Label P/N: 105331 )
Membranes have a life expectancy of between 2 and 5 years, depending on the incoming water
conditions and the amount of use of the RO system.
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. A water sample may be sent into Premier for a free
test or a TDS (total dissolved solids) monitor can be purchased from Watts Premier to test the
incoming and reverse osmosis water. Membranes should be replaced when TDS reduction is 80% or
less. TDS Monitors are available for purchase on page 20 of this manual.
To send a water sample, include ½ cup of tap water and ½ cup of the system’s reverse osmosis
water in clean containers. Clearly mark each container. Watts Premier will test the water and call or
mail you the results.
Step 1 To change your membrane follow the instructions for the 6 Month System Maintenance
(previous section). The procedure to remove and change the membrane housing is
the same as all the other filter housings on the RO module.
Step 2 Check over the next 24 hours to ensure no leaks are present.
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