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Stage 5 – When should I change the Final Polishing Filter?
This is the final filtration stage in your R.O. System. The Final Polishing filter is rated for 1800-2000
gallons of purified water production and therefore should be changed every second time you change
your three pre-filters.
HOME II SYSTEM FILTER CHANgE INSTRuCTIONS
Pre-Filters – How to conduct a filter change.
Step 1. Install the new pre-filters (Fig 25)
1
Depressurize your system (see Fig. 23)
2
Unscrew the rst pre- lter housing with the large
canister wrench. Please note: There will still be
Figure 25
water in the housings of the lters so it will be
helpful to have a cloth at hand.
Changing the
pre-filters
NOTE: R.O. Membrane and other lters
and hoses not shown for clarity
4
Make sure the SED pre- lter is centered in the
pre- lter housing. Screw the rst pre- lter housing
back on using the canister wrench. Use reasonable
force to ensure a proper compression seal.
Once you have finished tightening the third and final pre-filter housing to the main system, you will
need to conduct a "pre-filter flush".
page 18 | Home II Installation Instructions 05/13 | www.aquasafecanada.com
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large canister
wrench
3
Remove protective plastic from the
replacement SED (sedimentary) lter and
insert into housing. There is no up or
down to this lter.
SED
5
Replace the second (GAC -
Granular Activated Carbon) and
third (CCB - Coconut Carbon Block)
pre- lters in the same way. The
only lter for which direction
matters is the GAC lter.
Move on to the pre- lter ush.
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GAC
CCB
GAC lter
has a white
gasket at
the top and
mesh on
the bottom.
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