Purenex Multipure Aquaperform - Manual (Page 19)

4.3: Installing the New Filter
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4.2: Removing the Old Filter
4.1: Regarding Filter Capacity
1. exact filter capacity varies in proportion to the amount of water used and the level of impurities in the water being
processed. For contaminants reduced through physiochemical adsorption, the filter capacity is 600 gallons. For
contaminants reduced through mechanical filtration, capacity claims are inapplicable due to broad variations in the quality
and quantity of physical matter in the drinking water. excessive physical matter will cause the Dws to clog, diminishing
flow rate but reducing the contaminants from the resultant water stream.
2. For optimum performance and to maintain the lifetime warranty on your system housing, it is essential that the filter be
replaced when the first of the following occurs: 1. annually, 2. when the system reaches its rated capacity, 3. when the
flow rate diminishes, or 4. when the filter becomes saturated with bad tastes and/or odors.
1. Before opening the Dws housing, place a pan or basin beneath the housing.
2. Disengage the water supply to the Dws by turning the Adapta Valve shutoff valve
clockwise or by turning the water supply shutoff valve clockwise.
3. Turn on the Dws faucet to relieve the water pressure in the system.
4. If the system is mounted on a bracket, remove the system from the bracket.
a. Tilt the top of the system toward the wall.
b. slide the locking V-Band up and into the upper bracket notch.
c. slide the system out of the bracket.
5. with the Dws housing in an upright position, unscrew the black knob on the locking
V-Band by turning it counter-clockwise.
6. with the black knob removed, spread the locking V-Band apart and let it drop off the
bottom of the Dws. Carefully set it aside.
7. lift the top half of the Dws off of the bottom half. Make sure that the black O-ring
remains in place on the bottom half of the housing.
8. remove the old filter cartridge from the top half of the housing by rotating it counter-
clockwise (if facing the inside of the top half of the housing).
9. Dispose of the used filter in your waste container.
10.rinse out the inside of the system housing, hand washing if necessary.
11.Inspect the black rubber cushion on the inside of the top half of the housing, making sure
that it is not cracked or worn; Multipure recommends that the cushion be replaced every
two to three years.
1. If you have not done so already, remove the plastic wrapper and instruction wrap
from around the new filter.
2. Align the threaded hole of the new filter cartridge onto the inside thread of the top
half of the Dws. rotate the cartridge clockwise to tighten (if facing the inside of the
top half of the housing). Make sure that the cartridge is threaded properly and
straight. DO nOT OVerTIGHTen.
3. reconnect the top half of the housing (with attached filter cartridge) with the bottom
half. replace the locking V-Band, making sure the screw is in place to connect the
band together.
4. screw the black knob onto the locking V-Band, turning it clockwise to tighten.
5. Make sure that the V-Band is tightly secured evenly around the housing top and
bottom.
6. To resume normal use of the Dws, proceed to 3.7: Preparing and Operating Your
Drinking Water System.
keyhole
4. Maintenance