Instructions / Assembly

19
Version 2.1I
USS-335 installation instructions
Filter Replacement
(every 12 months)
connect to auxiliary faucet
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For FREE Filter Replacement Reminder, go to www.protectplus.com
Note: Place paper towels or rag under the filter system to catch any water drips.
Note: The 1/4" plastic tubing does not need to be disconnected for general routine maintenance and filter replacement.
However, plastic tubing may be easily disconnected. Simply turn o the water supply to the filter system. Press in the
collar around the fitting while pulling the plastic tubing out with the other hand.
LOCK LOCK
1/4 turn
Filter Replacement
(every 6 months)
connect to auxiliary faucet
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L
A
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LOCK
1/4 turn
• Remove the Redi-Twist pre-filter cartridge from the system by turning it to the left.
• Remove the Redi-Twist post-filter cartridge from the system by turning it to the left.
• Disconnect the ¼” red tubing from the Elbow Fitting then remove the restrictor from
the tubing and replace with new restrictor. Disconnect the Elbow Fitting from the
membrane drain port. Remove the membrane from the system by turning to the left.
Replace the membrane and re-attach Elbow Fitting and reconnect to the ¼” red
tubing.
• Discard the Redi-Twist filters in a proper manner.
• Install new Redi-Twist filters in reverse order:
1) 3rd Stage filter,
2) Membrane filter,
2) 1st Stage filter.
• Purge the RO System per the instructions in Step 7.
1st Stage and 3rd Stage Filter Replacement: Membrane Filter Replacement:
LOCK LOCK
1st Stage
Carbon Filter
3rd Stage
Carbon Filter
2nd Stage
Membrane Filter