34
10) How to Test RO’s Shut-Off Function:
The RO system should shut off automatically when the tank is filled. When the RO fails to shut off after
tank is filled, drain water will keep running down the drain depleting the pre-filters, the membrane, and
may lead to higher water bills. To test if your RO system is shutting down normally, please follow the
steps below.
- Draw 3-4 glasses of water from spigot. RO will start making water to fill tank.
- Turn OFF the blue tank ball valve on top of the water storage tank clockwise 90 degrees to
mimic a full tank.
- If your RO feeds multiple output points (icemaker, bathroom, etc), please use a manual shut
off valve to shut OFF water to those lines.
- Wait up to 10 minutes, then check to see if the drain water starts slowing down to a stop.
- Check drain water by pulling the black drain tubing out from the drain pipe and let water flow
into a good size bucket to view it.
- If drain water stops running --> The RO is shutting off properly no additional test is needed.
- If drain water continues to run after 10 minutes --> it could be caused by the following:
a. Insufficient or low water pressure.
b. Colder tap water during winter seasons.
c. System part or filter not working correctly.
Please contact an APEC Product Specialist at your earliest convenience to help take care of this
issue quickly.
34
10)How
w
to
to T
T
es
est RO’s Shut-Off Function:
Th
Th
e
e R
RO system should shut off auto
ma
ma
ti
ti
cal
lly
y when the tank is filled. When th
he
e RO
RO f
f
a
ails to shut off after
ta
ta
nk is filled, drain water will keep
ru
ru
nn
nnin
ing
g down the drain depleting the pre-f
-f
il
ilte
te
rs
rs,
,
t
the membrane, and
may lead to higher water bills. To t
tes
est
t if
if y
y
ou
o
r RO system is shutting down normally, please follow the
steps below.
- Draw 3-4 glasses of water from spigot. RO will start making water to fill tank.
- Turn OFF the blue tank ball valve on top of the water stor
ora
age tank clockwise 90 degrees to
mimic a full tan
an
k.
k.
- If your RO
RO f
f
ee
eeds
ds
multiple output points (icemake
e
r,
r, b
b
at
athroom, etc), please use a manual shu
hu
t
off valv
lve
e
to
to shut OFF water to those lines.
- Wa
Wa
it
it u
up to 10 minutes, then check to s
s
ee
ee
if the drain water starts slowing down to
o a
a s
st
top.
-
-
Ch
C
eck drain water by pulling the
e
b
b
la
lack
ck
d
drain tubing out from the drain p
ip
ip
e
e an
an
d
d
let water flow
into a good size bucket to view
w
it
t
.
- If drain water stops run
nni
ning
ng
-
-
-> The RO is shutting off properly no additional test is needed.
- If drain water continues
t
t
o
o run after 10 minutes --> it could be caused by the following:
a. Insufficient or low water pressure.
b. Colder tap water during winter seasons.
c. System part or filter not working correctly.
Please
se
contact an APEC Product Specialist at y
y
ou
ou
r
r
ea
ea
rliest convenience to help take ca
a
re
re
o
of
f this
issu
ue
e qu
qu
ic
i
kly.
