Installation Guide
19
2) Open housing: Have the RO standing upright. Slip the plastic wrench onto the #1 housing.
Looking down from a top view, you should open the housing turning clockwise. If necessary, lay
RO down on the floor to get a better leverage. If the housing is too tight, use a hammer and tap
on the wrench handle to help turn the wrench.
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’s ball-valve. Turn ON the RO
faucet 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. Do so by Pushing In and Holding Down on the
collet ring into the elbow fitting, then pulling out the tubing at the same time. (Do not remove the
L-shaped fitting). Open up the cap (turn counter-clockwise). Remove the used membrane. Dis-
card. Insert the new membrane using a pair of pliers. Push membrane into housing tightly. 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 open the tank valve. Let the RO system run to re-fill the tank (takes about 2-3 hours).
1
9
2)
Open housing: Have the RO standing upright. Slip the plastic wrench onto the
#1
housing.
L
ooking down
f
rom a top view, you should open the housing turning clockwise.
If
necessary, lay
R
O down on the
f
loor to get a better leverage. I
f
the housing is too tight, use a hammer and tap
o
n the wrench handle to help turn the wrench.
3)
D
iscard 3 used
f
ilters, wash housings with mild soap, rinse o
ff
. Put 3 new
f
ilters into thei
r
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 housing.
5)
Remember: Turn ON the cold water supply and OPEN the tank valve a
f
ter
f
inished changing
f
ilt
e
r
s!
6
)
C
h
ec
k
fo
r l
ea
k
s!
Af
ter taking the housing o
ff
,
take out the dirty
f
ilters and
put the new 3 pre-
f
ilters in.
Remember, Stage-2 and
Stage-3 are the same carbon
f
ilt
e
r
s
.
F
i
g. 14
How to R
ep
lace Sta
ge
-4 Membrane:
1
)
T
urn OFF the cold water supply to RO system. Turn OFF tank’s ball-valve. Turn ON the RO
TT
f
aucet brie
f
ly to relie
f
the built-up pressure inside the RO system. This will make opening the
housings easier.
2)
Se
e
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. Do so by
Pushing In
g
a
n
d
Holding Down
g
o
n th
e
c
ollet ring into the elbow
f
itting, then pulling out the tubing at the same time. (Do not remove the
L
-shaped
f
itting). Open up the cap (turn counter-clockwise). Remove the used membrane. Dis
-
c
ard. Insert the new membrane usin
g
a
pa
ir o
f
pl
iers. Push membrane into housi
ng
t
ig
ht
ly
. Avoid
touching the Membrane with your hands to prevent contamination!
gyp
3)
I
mportant! Make sure the “
double-ring
g
”
end o
f
the membrane goes into the housing
f
ir
s
t
as
s
hown in F
i
g.14B below. The membrane
c
annot
f
ilter water i
f
it’s inserted in the WRONG
d
irection
!
4)
Close the housing cap.
R
e
connect the White tubing to the cap.
Tu
rn
o
n the cold water supply
a
n
d
open
the tank valve. Let the RO system run to re-
f
ill the tank (takes about 2-3 hours).