7. Check the polypropylene filter. If the polypropylene filter is
persistently dirty, replace it with a fresh filter.
8. Reassemble the filter cartridge, then reassemble the filter housing
with filter cartridge installed.
Long term storage
Allow all three filter elements to air dry completely (this
may take 2 days or more in some environments) before
reassembly. Do not dry the filter in direct sunlight or in
a heated enclosure, the UV rays from direct sunlight
and excess heat can damage the filter materials.
Alumina Filter
Carbon Filter
Polypropylene Filter
23