Installation Guide
19
3) Discard 3 used filters, wash housings with mild soap, rinse off. Put 3 new filters into their respective
housings: sediment filter in stage-1, carbon block filters in stages 2 & 3.
4) Close up the housings. Make sure each housing has a black O-ring in the thread groves. Use wrench
to tighten each housing.
5)
Remember: Turn ON the cold water supply and OPEN the tank valve after finished changing filters!
6) Check for leaks!
After taking the housing off, take out the
dirty filters and put the new 3 pre-filters
in. Remember, Stage 2 and Stage 3 are
the same carbon filters.
Fig. 14
How to Replace Stage-4 Membrane:
1) Turn OFF the cold water supply to RO system. Turn OFF tank ball-valve. Lift up RO faucet lever briefly to
relief the built-up pressure inside the RO system. This will make opening the housings easier.
2) See Fig.14A. Locate the Membrane housing on the system (labeled “Membrane”). Remove the WHITE
tubing from the housing’s cap at point D. To remove tubing, Push In and Hold Down on the collet ring
square against the fitting. With the collet held in this position the tube can be removed. Open up the
cap (turn counter-clockwise). Remove the used membrane and discard. Insert the new membrane using
a pair of pliers. Push membrane into housing. Avoid touching the Membrane with your hands to prevent
contamination!
3) Important! Make sure the “double-ring” end of the membrane goes into the housing first as shown in
Fig.14B below. The membrane cannot filter water if it’s inserted in the WRONG direction!
4) Close the housing cap. Reconnect the WHITE tubing to the cap. Turn on the cold water supply and tank
valve. Let the RO system run to re-fill the tank (takes about 2-3 hours).
Use
Wrench
3rd
Stage
2nd
Stage
1st
Stage
STEP1 STEP2
W
W
1
9
3)
D
iscard 3 used
f
ilters, wash housings with mild soap, rinse o
ff
. Put 3 new
f
ilters into their respective
housings: sediment
f
ilter in stage-1, carbon block
f
ilters in stages 2 & 3.
4)
Close up the housings. Make sure each housing has a black O-ring in the thread groves. Use wrench
to tighten each housin
g.
5
)
Remember: Turn ON the cold water supply and OPEN the tank valve a
f
ter
f
inished changing
f
ilters!
6
)
Ch
ec
k
fo
r
le
ak
s!
Af
ter taking the housing o
ff
, take out the
dirty
f
ilters and put the new 3 pre-
f
ilters
i
n. Remember, Stage 2 and Stage 3 are
th
e
sa
m
e
ca
r
bo
n
f
ilt
e
r
s
.
F
i
g.
14
How to Replace Stage-4 Membrane:
1)
T
urn OFF the cold water supply to RO system. Turn OFF tank ball-valve. Lift up RO faucet lever briefly to
TT
relie
f
the built-up pressure inside the RO system. This will make opening the housings easier.
2)
See
Fig.14
A
. Locate the Membrane housing on the system (labeled “Membrane”). Remove the WHITE
tubing
f
rom the housing’s cap at po
i
nt D. To remove tubing, Push In and
H
old Down
on the collet ring
s
quare against the
f
itting. With the collet held in this position the tube can be removed. Open up the
c
ap (turn counter-clockwise). Remove the used membrane and discard. Insert the new membrane using
a pair o
f
pliers. Push membrane into housing.
Avoid touching the Membrane with your hands to prevent
gyp
c
ontamination
!
3)
I
mportant
!
Make sure the “double-ring” end o
f
the membrane goes into the housing
f
ir
s
t as shown in
F
i
g.14B below. The membrane
c
annot
f
ilter water i
f
it’s inserted in the WRONG directio
n!
4)
Close the housing cap.
R
e
connect the WHITE tubing to the cap.
Tu
rn
o
n the cold water supply and tank
valve. Let the RO system run to re-
f
ill the tank (takes about 2-3 hours).
Us
e
Wr
W
W
en
ch
3r
d
S
t
ag
e
2n
d
S
t
ag
e
1s
t
S
t
ag
e
S
T
E
P
1
S
T
E
P
2
W
W