Purenex Multipure Aqua RO System - Manual (Page 16)

Step 11a To flush the Final Filter, turn on cold water supply by turning the handle on the shut-off
valve and/or adapta valve / valve.
11b Then open the RO faucet by turning the operating lever (handle) and lock in the down
position.
11c Allow water to flow through the MP750SI Final Filter for about 5 minutes so that all air can
escape.
11d Close the RO faucet and check for leaks.
- Check the V-Band to confirm that it is secured evenly around the housing top and bottom.
- Hand-tighten the black knob on the V-Band until it is as tight as possible
Step 12 Allow water to again run through the unit to waste for approximately 20 minutes to charge
the carbon and flush out loose carbon particles.
Step 13 Shut off the water at the valve / adapta valve.
Step 14 Disconnect the green tube from the MP750SI. See page 11, step 39 for instructions on
how to disconnect tubing.
NOW RECONNECT THE FINAL FILTER TO THE TANK.
NOTE: Be sure to fully insert the tubing in the connector. Push the tubing through the small hole in the
connector until you feel resistance. At this point, the tubing is not fully inserted. Then push firmly until
the tubing is inserted as far as it will go.
Step 15 Insert the end of the clear tube back into the 1/4” “inlet” connector on the MP750SI.
RECONNECT THE GREEN TUBING TO THE RO Module.
NOTE: Be sure to fully insert the tubing in the connector. Push the tubing through the small hole in the
connector until you feel resistance. At this point, the tubing is not fully inserted. Then push firmly until
the tubing is inserted as far as it will go.
Step 16 Insert the green tube back into the 1/4” “in” connector of the RO Pre-filter module.
RESTART SYSTEM.
Step 17 Turn on the incoming cold water. Check the system for leaks and tighten any fittings as
necessary. (Check over the next 24 hours to ensure no leaks are present).
Step 18 Open the tank valve by turning the handle 1/4 turn. Open the RO faucet and leave open
until after water begins to trickle out. Then close the RO faucet.
Step 19 Now you may continue using your RO system for all of your drinking water needs.
Inspect the reverse osmosis system periodically to ensure the unit is functioning properly.
Annual Maintenance - continued
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