Membrane Maintenance - Watts Premier 5 SV DELUXE Installation, Operation And Maintenance Manual

Membrane Maintenance

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 sample may be sent into Premier for a free test or a TDS
(total desolved solids) monitor can be purchased from Watts Premier to test the incoming and reverse
osmosis water.
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.
To change the membrane, use a 5/8" wrench to remove the Green
Step 1
Tube on the left side of the membrane housing (the end with only one
elbow).
Step 2
Remove the cap from the white horizontal membrane housing. Turn
Cap counter clockwise to loosen.
Note:
A double sided wrench can be purchased from Premier.
Using a pair of pliers, grip and pull firmly on the membrane to remove
Step 3
from the housing and discard.
Unwrap new membrane and lubricate the o-rings with water soluble
Step 4
lubrication such as KY Jelly ® before inserting into housing. Insert
end with the two black O-rings into the membrane housing.
Once membrane has been inserted into the housing you must take
Step 5
your thumbs and give a firm push to properly seat the membrane.
Replace membrane housing cap and tighten.
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