Purenex Multipure Aquasource - Manual (Page 8)

Regarding Filter Capacity
1. The Multipure Aquasource Whole House Water Treatment System uses filter Model No.
CB20 (optional: CB20LSI). Exact filter capacity varies in proportion to the amount of
water used and the level of particulate matter in the water being processed.
2. For optimum performance and to maintain the lifetime warranty on your system
housing, it is essential that the filters be replaced when the first of the following occurs:
(a) when the system reaches its rated capacity, (b) when the flow rate diminishes, (c)
when the filter becomes saturated with bad tastes and/or odors, or (d) every 6-12 months.
3. For any questions regarding the replacement of your Multipure Aquasource filters, or to
order Replacement Filters, please contact Multipure by phone at 1.800.622.9208 or
online at www.multipure.com.
Removing the Used Filter Cartridges
1. Locate the main water supply line for the house. Locate the main water supply shutoff
valve and rotate it counter-clockwise to close the water supply to the house.
2. Close all of the faucets in the house to avoid back flow of water.
3. Relieve air pressure from the housing by rotating the air vent valve nut (located on top
of the housing lid) counterclockwise until it is removed.
4. Attach a garden hose to the drainage valve and open the valve to flush the system.
5. Allow water to flow through the Aquasource and out through the flushing hose. This will
drain the water from the system housing.
6. Close the drainage valve. Check all connections for any possible leaks.
7. Turn each of the 8 I-bolts counter-clockwise to loosen (use a screwdriver, pliers, or other
tool for leverage, if necessary). Pull the I-bolts up and away from the housing lid, and
then turn them so that each I-bolt rests against the side of the housing bottom.
8. Carefully lift the housing lid up off of the housing bottom and set aside.
9. Turn the nut on the retention plate counter-clockwise to remove. Carefully remove the
filter retention plate and set both the plate and the nut aside.
10. Carefully remove each of the 3 used filter cartridges from the system housing. Allow
them to dry for 24-48 hours before disposal.
11. To dispose of the used filters, place them in normal refuse.
Installing the New Filter Cartridges
1. Remove the plastic wrapper and instruction wrap from around the new filter cartridges.
2. Inspect each filter cartridge to make sure that all three have two (2) black O-rings
properly seated in grooves on the nipple, and one (1) white gasket seated at the base
of the filter nipple.
3. Install each filter cartridge inside the system housing, one at a time:
a. Insert each filter cartridge, nipple-side down, into one of the 3 receptor holes located
inside the bottom of the Multipure Aquasource housing.
Maintenance
6