Annual maintenance – Purenex Multipure Aqua RO System User Manual

Page 15

Annual Maintenance

For filters or replacement parts, contact Multipure at 800.622.9208 or at www.multipure.com

Step

Perform 6 month system maintenance (previous section). Ensure the system is depres-

surized by turning the valve on the tank 1/4 turn until it stops and turn off water supply at

adapta valve.

Step

The CB6 filter (used in the MP750 Final Filter) should be replaced annually. See replace-

ment filter wrap for additional instructions on replacing the CB6 carbon block filter in the

MP750SI Final Filter unit. Remove plastic wrapper and instruction wrapper from the filter

cartridge. With the Final Filter housing in an upright position, open the unit by

unscrewing the knob on the Locking V-Band. Spread it apart and remove the Locking V-

Band.

Step

Separate the unit, leaving the black O-ring in place.

Step

Remove the used filter and discard it in your normal refuse.

Step

Clean and rinse out the stainless steel housing.

Step

Screw the new filter cartridge into the housing top by turn-

ing the cartridge until firm. DO NOT OVERTIGHTEN.

Step

Connect the housing top with bottom and replace Locking

V-Band; replace black knob and turn until tight. Be sure

that the Locking V-Band is fastened tightly by checking it to

be sure that it is secured evenly around the housing top and bottom, and hand-tighten the

black knob until it is as tight as possible.

Flush the carbon block filter, as follows:

Step

Disconnect the green tube from the “in” connector of the RO

Pre-filter module. See page 11, step 39 for instructions on

how to disconnect tubing.

NOTE:

You will reconnect the green tube after the Final Filter is

flushed.

Step

Disconnect the clear tubing to the “inlet” connector of the
MP750SI housing.

Step

Connect the end of the green tubing that you disconnected from

the RO Pre-filter module to the “inlet” port of the MP750SI.

Remove Filter

Connect Filter

IN Connector

OUTConnector

INLET port