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Kenmore 625.38575 Owner's Manual page 9

Reverse osmosis drinking water system
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- STEP 6: SANITIZING,
PRESSURE TESTING & PURGING -
SANITIZING
Sanitizing
is recommended
upon
installation
of the
RO system,
and after
servicing
inner
parts.
It is im-
portant
for the service
person
to have
clean
hands
while
handling
inner
parts
of the system.
CA UTION:
Be sure to remove
the RO membrane
and
both
filter
cartridges
as follows,
before
sanitizing.
Chlorine
will
destroy
the RO membrane
cartridge.
1. Be sure the water
supply
to the RO is turned
off,
and the RO faucet
is open
to relieve pressure.
2. Referring
to Figure
10, page
12, remove
the RO
membrane
sump
by twisting
1/4 turn
left (_D). Re-
move
the R© cartridge
from
sump.
Place
the car-
tridge
in a clean
plastic
bag.
3. Be sure the o-ring
seal is on the sump.
Replace
the
RO sump
by turning
to the right
(k,) to lock.
4. Remove
the postfilter
sump,
turning
to the left.
Take the cartridge
from
the sump
and place
in the
plastic
bag.
Replace
the sump
by turning
to the right
(k_) to lock.
5. Remove
the prefilter
sump
and
cartridge.
Also
place
this cartridge
in the clean bag.
6. If needed
to clean,
flush
the prefilter
sump
with
fresh water.
Then fill with water
to about
1" from the
top.
Add
1.0 ounce
of chlorine
(ordinary
5.25%
household
bleach...Hilex,
Clorox,
etc.) and mix in the
water.
Do not add chlorine
first. Concentrated
it will
attack
plastics.
7. Carefully
replace
the sump
on the prefilter
head
and turn
to the right
(k_) to lock.
8. Slowly
open
the water
supply
to the RO.
9. Open
the R© faucet
by turning
knob
to the left.
10. Allow
water
to circulate
through
the R© system
until
you
smell
the bleach
odor
at the faucet.
Then
close the faucet
and allow the R© to stand
idle for 20
minutes.
11. After the 20 minutes
open the R© faucet
and run
water
until
the bleach
odor
is gone.
12. Turn off the water
supply
to the R©.
13. Be sure your
hands
are clean. Then,
repeat
steps
1 - 5 and 7, only replace
all cartridges.
Important:
Refer to Figure
10, page
12, and to page 13
when
replacing
cartridges.
The prefilter
(left side)
cartridge
and
the postfilter
(right
side)
have
puple
end caps.
PRESSURE
TESTING
1. Do the preceding
sanitizing
procedures
before
pressure
testing.
2. Open
the water
supply
shutoff
valve
to the RO.
3. Open
the main
water
supply
valve
and
several
house
faucets
to purge
air from
the system.
Close
faucets
when
water
runs
smooth.
4. In about 2 hours, pressure
will start to build
in the
RO system.
Then, carefully
check all fittings
and con-
nections
for water
leaks.
Correct
leaks
if any
are
found.
Note:
When
the system
is first
pressurized,
water
may "spurt"
from
the faucet
airgap
hole until
air is
expelled
from the RO system.
PURGING
RO MEMBRANE
Important
pmxing
instructions:
The RO cartridge
contains
a food _ade
preservative
that should
be rinsed
before
using
water
from
the system.
The preserva-
tive will give product
water
an unpleasant
taste and
odor.
1. Allow
the storage
tank
to fill for about
4 hours.
Then open
the R© faucet
until the tank is empty
and
flow stops.
Close
the RO faucet.
2. Repeat
step
1 five more
times
(for a total of 6) to
purge
the RO system.
Then
the RO system
is ready
to make
product
water
for use
9
Problems,
Questions?
Call 1-800-426-9345
Kenmore
Water Line

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