Cuno SQC Pro - Manual (Page 14)

4) Fill the sanitizing device with the following recommended
dosage of common household bleach:
• A standard 2.5 gallon tank - 1/2 teaspoon (3 ml)
• Alternate size tanks - 1/2 teaspoon (3 ml) per 2.5 gallons
of tank capacity
5) Open the feedwater tapping valve to force water and
sanitizer into the storage tank. Allow about three (3)
minutes to fill a standard 2.5 gallon tank. It should feel
heavy when it is full.
6) The sanitizing agent should remain in the storage tank a
minimum of 15 minutes. Close the feedwater tapping valve
and the storage tank valve. Disconnect the sanitizing
device from the storage tank and feedwater tapping valve.
Reinstall the storage tank and reconnect the 1/4" orange
feedwater tubing and the 3/8" yellow tubing.
7) Open the feedwater tapping valve to pressurize the system.
Plug in the transformer. Open the tank valve and lift up on
the faucet handle to drain the storage tank of the sanitizing
solution. When the storage tank is empty, the faucet should
drip steadily.
8) Shut off the faucet and allow the storage tank to fill for at
least six (6) hours. Drain the storage tank again and discard
the water. The appliance should be ready to use as soon as
the tank refills. If any objectionable taste is noticed, then
drain the storage tank again and allow it to refill.
How to Sanitize the Purification Assembly
Sanitizing the Purification Assembly generally requires:
• A new prefilter cartridge
• Common household bleach (5.25% non-scented)
• A standard eyedropper or equivalent
1) Close the feedwater tapping valve and lift up on the faucet
handle to empty the storage tank.
2) Follow the instructions on changing the prefilter cartridge.
3) Before installing the new cartridge, use and eyedropper to
inject one teaspoonful (approximately 5 ml) of household
bleach into the center opening of the filter cartridge. The
prefilter is located just before the RO membrane cartridge.
(See Fig. 9)
4) Open the feedwater tapping valve and allow the appliance
to operate for at least six hours. Drain the storage tank
and discard the water. The appliance should be ready to
use as soon as the storage tank refills. If any
objectionable taste is noticed, then drain the storage tank
again and allow it to refill.
E. LONG TERM NON-USE
If the RO appliance is to be left unused for a long period of
time (greater than 30 days), follow this procedure:
1) Lift up on the faucet handle to drain the storage tank and
close the feedwater tapping valve. Wait five minutes for
the purification assembly to depressurize.
2) Remove all of the filter cartridges. Turn the cartridges
upside down in the sink to drain out as much water from
them as possible.
3) Place the cartridges in an air tight plastic bag and store
them in the refrigerator.
Important: The cartridges must
be not be allowed to freeze because permanent
damage may occur.
4) When the RO appliance is ready to be put back into
service, reinstall the filter cartridges by matching the
symbols on the top of the cartridge labels with the ones on
the purification assembly heads. Sanitize the storage tank
as described in the previous section. The purification
assembly can be sanitized at this time if so desired.
5) Follow the start up procedure outlined in the previous section.
Fig. 8
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Fig. 9