www.aquasafecanada.com | Maximus II Installation Instructions 05/13 | page 9
page 8 | Maximus II Installation Instructions 05/13 | www.aquasafecanada.com
8.0 Installing the first D.I. Resin Canister
Push two canister clips (found in the Large Parts Bag) onto the R.O. Membrane housing with the wid-
est end of the clips down (Fig. 14). Attach one D.I. Canister to the canister clips by pushing the canister
down onto the clips. Ensure the blue end caps of the D.I. Resin Canister are screwed on tightly before
doing this. The arrow on the D.I. Canister depicts the direction of flow of water through the canister.
Screw in an elbow adaptor to both ends of the D.I. Canister (step 1, Fig. 15). Remember to use teflon
tape (4 to 7 wraps) on the threads of the adaptors throughout the installation as a preventative
measure against potential leaks.
Next, take the short blue hose connected to the “OUT” side of the 4 way Auto Shut-Off Valve (ASV) and
push it into the elbow adaptor on the left side of the D.I. Canister (step 2, Fig 15).
9.0 Installing the second and third D.I. Resin Canisters
Push two of the remaining eight Canister Clips onto the R.O. housing. Then push another D.I Canister
into its place. Now screw an elbow into each end of this DI Resin canister and then connect the two D.I
Canisters with a 4 inch piece of blue hose from the small parts bag. The schematic on page 1 or Fig. 17
shows how these canisters all connect. Remember to apply 4-7 wraps of Teflon tape.
www.aquasafecanada.com
www.aquasafecanada.com
Push 2 canister clips onto
the R.O. Membrane housing
Push the D.I Canister down onto the canister clips.
Ensure the blue end caps of the D.I Resin Canister
are screwed on tightly before doing this.
1
2
Figure 14
Attaching the
D.I. Resin
Canister
Figure 15
Connecting the
blue water line
(Permeate) into
the D.I. Resin
Canister
1
2
Insert elbows into the holes on
either end of the D.I. Canister
Connect the short blue Permeate water line coming
out of the ASV to the elbow adaptor on the left side
(as viewed from the front) of the D.I. Canister
www.aquasafecanada.com
4 way auto
shut-off valve
(ASV)
NOTE:
Back View -
hanging
bracket
not shown
for clarity
PLEASE NOTE: The 3:1 ratio explained on
the previous page can easily be achieved
by visually judging the rate of the BRINE /
PERMEATE flows. However if you want to
achieve exacting ratios between brine and
permeate water you can simply time how
long it takes to fill a certain volume such as a
measuring cup or the like (Fig 13). When do-
ing this “timed measurement” the permeate
water should take three times as long to fill
the same volume over that of the brine water
(3:1 Ratio). We do not recommend anything
over a 1:1 ratio as it is extremely important for the R.O. Membrane to have adequate BRINE flow to be
able to flush away the harmful particulates it is removing while filtering the water. A setting near to
or at 1:1 ratio is only recommended if you are in a desert environment and need to conserve as much
water as possible or if you are charged large sums of money per gallon from your water utility. A RATIO
BEYOND 1:1 IS VERY LIKELY TO DAMAGE THE R.O. MEMBRANE. YOU SHOULD ALWAYS HAVE MORE
BRINE WATER FLOW THEN PERMEATE WATER FLOW.
Figure 13
Timing flow rates
to set up the
E-Z Flush Flow
Restrictor
‘BRINE’ water
rejected by
R.O. membrane
‘PERMEATE’ water
takes 3x longer to
fill the same cup
The permeate water coming directly out of the R.O. Membrane housing (via the auto shut-off valve)
should achieve an 85% or greater reduction in ppm (parts per million) from that of your unfiltered
cold tap water in your home that has not been filtered by this system. If a TDS Meter was ordered
with your system gather a few ounces of water in a small glass and test the ppm’s - comparing the
ppm count of the permeate water coming directly out of your R.O. Membrane against that of your
home’s unfiltered cold water. It may take up to 15-20 minutes for the RO Membrane to become fully
activated and flushed of its food grade preservative to achieve this minimum 85% ppm reduction
Example: Home’s unfiltered tap water is 300ppm / R.O. Permeate water should be 45ppm or less.
You can find this value for
your
results by multiplying them by 0.15 (the 15% of particulates that are
left when 85% have been removed). If you do not see the minimum of 85% reduction in ppm’s after
20 minutes of permeate water flow, it means your R.O. Membrane is not seated properly in the R.O.
Membrane housing. You will need to take the R.O. Membrane out and re-insert as firmly as possible,
reassemble and then re-test the ppm’s as depicted above. If you do need to re-seat your R.O. Mem-
brane it is a very quick and easy procedure. Testing the ppm reduction rate of the permeate water
coming directly out of the RO Membrane housing is the most important ppm reduction test
you can perform and is a sure way to know if your system is performing as it should.
NOTE: You can also test the ppm of the permeate water after the D.I. Resin Canisters. The ppm
of the water coming directly out of the D.I. Resin Canisters should be even lower than that com-
ing out of the R.O. Membrane. The ppm should be at or near 0 ppm after the third D.I. Canister.
TIP
