6. Install a sanitization cartridge into the postfilter head on the right side of
the bracket assembly. Be sure that a solid plastic insert is included in the
center port of the cartridge and that it pushes the Puremometer into the
"up" position (blue indicator fully visible).
7. Empty one packet of chlorine dioxide granules into each of two sanitization
cartridges. Fill the cartridges with clean water and set aside to allow granules
to dissolve while you continue this procedure. Cap these cartridges. Strong
gaseous odors may occur. Use in a well-ventilated area.
8. Remove all packaging from the new MACguard postfilter. Insert the post-
filter into the prefilter position (leftmost) in the system so you can rinse
carbon fines from the cartridge in ensuing steps. Carbon fines are a normal
result of the carbon manufacturing process and are present in all carbon filters.
9. Install the RO module and fill the third sanitization cartridge with clean
water. Insert the sanitization cartridge into the postfilter position (rightmost)
in the system.
10. Attach a 1/4" male x 3/8" female connector and tubing to Port #1 on the
RO manifold and run the line to a drain.
11. Open drinking tap, slowly turn on the water supply valve, and let the
water flush the system for three (3) minutes to rinse fines from the post-
filter cartridge.
12. Shut off the water supply valve to depressurize the system. Close the drink-
ing tap.
13. Remove the rinsed postfilter cartridge from the prefilter position, cap and
set the cartridge aside.
Sanitizing the Manifolds, Tap, Tank and Line
14. Install one of the sanitization cartridges that includes the chlorine dioxide in
the prefilter (leftmost) position.
15. Run 3/8" tubing from Port #1 to storage tank shut-off valve.
16. Make sure the tank shut-off valve is open. Slowly turn on the water supply
valve and fill the storage tank for five (5) minutes.
17. Turn off the water supply valve. Close the valve on the storage tank and
open the drinking water tap to depressurize the system.
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