Sterling DWSB-TFC-50 User manual

1
INSTALLATION MANUAL
DWSB-TFC-50
DWSB-50-PUMP
12630 US 33 N.
Churubusco, IN 46723
Ph. [phone] Fax [phone]
www.sterlingwatertreatment.com

2
SECTION I. INTRODUCTION........................................................................3
SECTION II. SPECIFICATIONS.....................................................................3
SECTION III: PREPARATION.........................................................................4
A. Major System Components......................................................................................................4
B. Tools Recommended for Installation.........................................................................................4
C. Determine System Location......................................................................................................4
D. Prepare the Area for Installation...............................................................................................5
E. Prepare the Appliance for Installation.......................................................................................5
SECTION IV. INSTALLATION STEPS...........................................................5
A. Install the Faucet......................................................................................................................6
1. Make the Faucet Mounting Hole....................................................................................6
2. Mount the Faucet...........................................................................................................7
B. Install the Feed Water Valve and Tubing................................................................................7
C. Prefill and Sanitize the Storage Tank.......................................................................................7
D. Install the Drain Connection.....................................................................................................8
E. Install the RO Membrane.........................................................................................................8
F. Make Initial Tubing Connections..............................................................................................9
G. Install the Purification Assembly and Storage Assembly..........................................................9
H. Make Final Tubing Connections...............................................................................................9
I. Install Ice Maker Hookup (optional)..........................................................................................9
J. Start up the System...................................................................................................................9
K. Flush System of Preservative and Check Operation................................................................9
SECTION V: OPERATION & MAINTENANCE...................................................10
A. Normal Operation....................................................................................................................10
B. Changing Filters......................................................................................................................10
C. For Systems Equipped with Quick Connect Fittings...............................................................12
SECTION VI: TROUBLESHOTTING GUIDE......................................................13
LIMITED WARRANTY.........................................................................................15
TABLE OF CONTENTS:

3
SECTION I. INTRODUCTION
Congratulations, you have just purchased one of
the finest Reverse Osmosis Drinking Water
Appliances available.
Like any other fine product, this appliance requires
periodic maintenance in accordance with the
schedule outlined below.
Your new Reverse Osmosis (R.O.) Drinking Water
system uses a combination of filtration technologies
to reduce unwanted contaminants in a water
supply. The following steps combine to give you the
best in clear sparkling drinking water:
MECHANICAL FILTRATION - The sediment pre-
filter will remove the larger particles such as silt,
rust and scale. Its 5 micron (equal to 0.0002 inch)
nominal rating helps to give maximum life to the
R.O. Membrane and carbon filter.
ACTIVATED CARBON PRE FILTERS - The first
carbon filter contains granular activated carbon
which removes chlorine and absorbs organics that
can damage the membrane. The second carbon
filter is a carbon block that has activated carbon
with a smaller pore size to increase the range of
organics removed and extend the amount of
chlorine reduction. Carbon block filter has a five
micron rating to further protect the membrane.
REVERSE OSMOSIS MEMBRANE -The R.O.
Membrane is the heart of the filtration system. It is
designed to reduce the dissolved mineral content of
the water. Minerals picked up in the environment by
the water are measured as Total Dissolved Solids
(T.D.S.).In the Reverse Osmosis process,
dissolved minerals are separated from the incoming
water (Feed Water) to produce the product water
(the Permeate). The excess minerals are rinsed to
drain (the Reject Water). The spiral wound
construction of the R.O. Membrane provides
maximum surface area for water production and is
less susceptible to fouling by particulate matter,
turbidity and colloidal materials.
ACTIVATED CARBON POST FILTER - The Inline
Carbon Post Filter cartridge contains carbon parti-
cles with a vast network of pores. The tremendous
surface area of these pores (typically 800-1200
square meters per gram of carbon) gives the
carbon very good adsorptive sites for chlorine as
well as other substances that contribute to tastes
and odors. The product water from the membrane
as well as the holding tank passes through the
Activated Carbon Post filter on the way to the
Dispensing Faucet. The Activated Carbon Post
Filter reduces tastes and odors that may pass
through the system. It adds a final “polish” to the
water.
SECTION II. SPECIFICATIONS
TABLE A –QUALIFIED SYSTEM PERFORMANCE
Because the performance of an R.O. Membrane is highly dependent upon pressure, temperature and TDS, the
following should be used for comparison purposes only.
U.S. Metric
Membrane Production140-60 gpd 151-227 Ipd
Membrane TDS Reduction193% minimum 93% minimum
Drain (reject water) Flow 3-5 x product flow 3-5 x product flow
Empty Storage Tank Precharge 5-7 psig air 35-48 kPa air
1Industry standards measure R.O. Membranes performance with no backpressure on the product water, at 65 psig
(448kPa) and 77°F (25°C). Further conditions on the above are 600 ppm TDS. Production rate and TDS reduction figures
are for a new Membrane that has been rinsed for 24 hours. The production rate of a new Membrane can decrease by
10% per year or more, depending upon the scaling and fouling tendencies of the Feed Water.
Recommended Filter Change Schedule*
1 - Pre-filter, 10”, 5 Micron 6 Months
2 - Granulated Activated 6 Months
Carbon Pre-Filter
3 - Carbon Pre-filter for 6 Months
Chlorine Removal
4 - Reverse Osmosis 24-36 Months
Membrane
5 - Inline Carbon Post Filter 6 Months
*Based on standard conditions

4
TABLE B –RECOMMENDED OPERATING LIMITS FOR FEED WATER
Specifications T.F.C. Membrane
Water Pressure 40-100 psig (280-690 kPa)
TDS 2000 ppm (also mg/l) max.
Temperature 40-100°F (4-38°C)
pH 4-11 (optimum rejection at pH 7.0 –7.5)
Hardness Less than 7 gpg (120 mg/l) or soften
Iron Less than 0.1 ppm (also mg/l)
Manganese Less than 0.05 ppm (also mg/l)
Hydrogen Sulfide None
Chlorine See note
Bacteria Must be potable**
NOTE: Chlorine will damage a T.F.C. Membrane. The Activated Carbon Prefilters have been designed to reduce chlorine from
the incoming water. Change filters every 6 months, more often if the water contains more than 1 ppm chlorine.
**DO NOT USE WITH WATER THAT IS MICROBIOLOGICALLY UNSAFE OR OF UNKNOWN QUALITY.
SECTION III: PREPARATION
A. Major System Components
The following components comprise the R.O. Drink-
ing Water System:
1. A Reverse Osmosis assembly consisting of the
aluminum bracket, filter housings, automatic
shut-off, membrane module and an in-line
carbon filter.
2. A drinking water holding tank.
3. A faucet kit.
4. A plastic tubing kit with self-piercing saddle valve
and drain clamp.
5. Other items necessary for installation may
include wood screws or machine screws for
mounting the R.O. assembly concrete anchors
may be required for hanging on basement wall,
additional tubing or tube connectors, and plastic
wire ties for organizing tubing.
Note: For systems equipped with Quick Connect
fittings, see page 11.
B. Tools Recommended for Installation
The following tools will cover most of the installation
sites encountered:
3/8" variable speed electric drill.
Extension work light with outlet.
Safety Glasses.
1-1/4" porcelain hole cutter kit.
1-1/4" Greenlee hole punch and 1/8" and
1/2"metal drill bits for pilot hole.
Center punch and hammer.
1-1/4" wood bit.
Assorted wood and metal drill bits including
7/32" metal drill bit.
Phillips head and flat blade screwdrivers.
1/2", 9/16" and 5/8" open end wrench.
10" Crescent wrench with jaws taped to
hold faucet.
Teflon tape.
Wide masking tape or duct tape.
Plastic tubing cutter.
Extra plastic tubing.
Low range air pressure gauge.
Bicycle hand air pump.
Small bottle of liquid chlorine bleach.
C. Determine System Location
The R.O. system can be located under a sink or in
a basement depending on space availability and
the customer’s preference. If a basement
installation is selected, additional tubing, hardware
and fittings may be needed and a hole will have to
be made from inside the cabinet, through the floor,
to the basement. Never install in an area of the
home where temperature is freezing as damage to
the system will result.
Considerations for an ice maker or other remote
hook up should be determined, including routing
and any additional tools, fittings, and tubing that
may be required.

5
1) Faucet - The faucet should be placed near
the sink where drinking water is normally
obtained. Convenience of use (filling of
water pitchers and glasses), and an open
area beneath the faucet under the sink for
attaching product tubing are considerations.
A 2" diameter flat surface is required above
and below the mounting site. The thickness
of the mounting surface should not exceed
1-1/4".Watch for strengthening webbing on
the underside of cast iron sinks.
2) Drinking Water Holding Tank - The holding
tank may be placed where it is convenient
within 10 feet of the faucet. Under the sink
or in an adjacent cabinet are best choices. If
a longer run of tubing is required, the tubing
should be 1/2" diameter O.D. size to pre-
vent a high pressure drop. Remember,
these tanks can weigh up to 30 pounds
when full of water, a firm, and level area is
required.
3) R.O Assembly - The R.O. Assembly may be
mounted on either the right or left side of the
under-sink area or a cabinet. Mounting in
the basement is also an option, one
possible location is near the laundry /utility
sink where cold potable water and drain
access is handy. The mounting location
should allow adequate clearance and
accessibility for cartridge changes.
4) Feed Water Connection - The self-piercing
feed water shut off valve should be located
as close to the R.O. assembly as possible.
USE A POTABLE COLD WATER SUPPLY
ONLY. Softened water is preferred as it will
extend the life of the R.O. Membrane.
5) Drain Connection - The drain saddle
assembly is designed to fit around a
standard 1-1/2" OD drain pipe. The drain
saddle should always be installed above
(before) the trap and on the vertical or
horizontal tail piece. Never install the drain
saddle close to the outlet of a garbage
disposal or plugging of the RO drain line
may occur. If discharging into an utility sink
or standpipe, an air gap of greater than 1"
above the flood rim must be provided. Do
NOT connect the system drain line to the
dishwasher drain or near the garbage
disposal.
D. Prepare the Area for Installation
To save time it is often advised to call the customer
and request they clear under the sink prior to
arrival. Otherwise, remove supplies from under the
sink and stack them neatly away from the working
area. Arrange a light for the work area, if
necessary.
If a basement installation is called for, determine
where components will be located and how they will
be mounted. Special mounting brackets and
hardware may be necessary to secure the system
to a wall or ceiling joists.
Inspect cold water supply line and drain to
determine if any special fittings, in addition to what
is included in the kit, are required.
E. Prepare the Appliance for Installation
Open shipping carton and remove components.
Check that all installation parts are present which
includes the purification assembly, storage tank,
faucet, installation hardware, and tubing.
Check that the air supply in the empty tank is
approximately 7 psi. Adjust if necessary.
SECTION IV. INSTALLATION STEPS
All plumbing should be done in accordance with
state and local plumbing codes.
NOTE: Some codes may require installation by a
licensed plumber; check with the local plumbing
authority prior to installation.
In restricted under-sink areas, it may be easier to
install the faucet first. Allow adequate tubing
lengths for any final component position.

6
A. Install the Faucet
See Figure 1 for Faucet Installation Diagram
The customer should be consulted before
determining faucet location. The faucet should be
positioned so that it empties into the sink and the
spout swivels freely for convenience.
If the sink already has a hole provided that can
accommodate the RO faucet, then no drilling is
required and you can proceed to the section on
mounting the faucet.
1. Make the Faucet Mounting Hole
IMPORTANT: It is mandatory that safety glasses
be worn during sink hole drilling operations to
prevent eye injury.
Before starting the hole making operation, always
check below the sink so that nothing interferes with
mounting the faucet such as reinforcing ribs,
support brackets or cabinet construction.
STAINLESS STEEL SINK:
Recommended tools:
Center punch
Variable speed drill and high speed drill bits.
Greenlee chassis punch 7/8” hole size
(alternate 9/16” size may be used for non air
gap faucet)
Protective gloves
Procedure:
a) Center punch a small indent at the desired
faucet location.
b) Slowly drill the required pilot hole for the
chassis punch.
c) Set up the chassis punch per instructions
and tighten nut to cut the desired hole
size.
d) Clean up sharp edges with a file if
necessary.
PORCELAIN/ENAMEL/CERAMIC ON SHEET
METAL OR CAST IRON BASE:
Recommended tools:
Variable speed drill
Relton porcelain cutter tool set 7/8" size
(alternate 9/16: size may be used for air gap
or non-air gap faucet)
Plumber’s putty
It is important to understand what is involved in this
procedure. First, the glassy layer of porcelain must
be penetrated through to the base metal. Second, a
center disc of porcelain must be removed while
protecting the surrounding porcelain against chip
ping or fracturing. Third, the base metal must be
drilled through to complete the hole.
Procedure:
a) Mark the center for the 7/8” hole
b) Form shallow putty dam around hole area
and fill with enough water to lubricate
carbide drill bit.
c) Carefully drill plot hole through
porcelain/enamel and base metal using
carbide type pilot drill.
IMPORTANT: Always operate drill with light
pressure at slow speed (300-400 rpm).
d) Insert pilot tip of spring-loaded porcelain
cutter into pilot hole.
e) Drill porcelain/enamel using spring-loaded
porcelain cutter, making certain a complete
ring has been cut through the
porcelain/enamel to the metal base.
f) Change to the metal cutter. With slow
speed and light pressure, cut away the inner
porcelain/enamel disc down to base metal.
Make certain that the cutter does not touch
outer rim of the cut porcelain/enamel.
Continue with this bit to cut through metal
until sink has been completely penetrated.
IMPORTANT: When using a porcelain cutter it
is critical to take precautions that it is always in
a sharpened condition. Dull cutters are known
to chip sinks.

7
2. Mount the Faucet:
a) Familiarize yourself with all components
shown in faucet diagram.
b) Disassemble hardware from the threaded
nipple, except for chrome base plate and
rubber washer.
NOTE: Rubber washer may be replaced with bead
of plumber’s putty for neater appearance.
c) Connect length of standard 1/4" tubing to
faucet. Ensure plastic insert is in tubing.
Push on firmly until it seats.
d) Feed the threaded nipple through
sink/counter mounting hole and orient the
faucet as discussed with the customer.
e) From below sink/counter assemble the
black plastic washer, star washer and hex
nut on threaded nipple and tighten by hand.
f) After rechecking faucet orientation, tighten
hex nut (9/16" wrench or deep socket) until
faucet feels secure.
g) From above the sink make any minor
orientation corrections by turning the faucet
with a padded adjustable wrench.
h) Install plastic ferrule and compression nut
on tubing.
Note: Flats on chrome faucet may be used for
tightening with an adjustable wrench. Use care not
to mar chrome finish.
B. Install the Feed Water Valve and Tubing
The saddle tapping valve supplied is designed for
use with 3/8" to 1/2" OD soft copper supply tubing
(plain or chromed), rigid metal pipe, or CPVC
plastic pipe. Do not use with flexible ribbed supply
tubing which has too thin a wall thickness and
requires special hard ware.
Saddle Valve Installation
SOFT COPPER TUBING INSTALLATION:
1) Turn off cold water valve under the sink, or
main valve for the house.
2) Before installing saddle tapping valve, make
sure piercing lance does not protrude
beyond rubber gasket.
3) Assemble saddle tapping valve on copper
tubing. Tighten clamp.
4) To pierce soft copper tube, turn handle
clockwise until it is firmly seated. The valve
is closed in this position.
5) Turn on main supply valve to pressurize
coldwater line. Check for leaks. With a
wrench snug nut/seal around valve stem.
6) Connect one end of the tubing to the feed
water valve using brass compression nut
and plastic sleeve.
NOTE: For basement installations the existing feed
water tubing may have to be longer to reach feed
valve.
RIGID METAL PIPE AND CPVC PLASTIC PIPE
INSTALLATION:
1) Turn off cold water supply valve and drain the
line to prevent spillage.
2) Drill 3/16" hole at the desired location. To pre-
vent shock hazard, use a battery operated drill.
3) Before installing saddle tapping valve, make
sure piercing lance does not protrude beyond
rubber gasket.
4) Assemble saddle tapping valve on copper
tubing.
5) Turn saddle valve handle clockwise to close
valve. With a wrench tighten nut/seal around
valve stem.
6) When you wish to open valve and supply cold
water to the unit, turn valve handle counter
clock wise.
7) Connect one end of the tubing to the feed
water valve using brass compression nut and
plastic sleeve.
NOTE: For basement installations the existing feed
water tubing may have to be longer to reach feed
valve.
C. Pre-fill and Sanitize the Storage Tank
Pre-filling the tank is always recommended so there
is pressure to check for leaks and several gallons
of water to flush carbon post filter. Tanks are
furnished with a special disinfectant and only

8
require filling with water for 15 minutes to be
completely sanitized. It is important to use a
sanitizer when pre-filling tank so the solution can
sanitize the tubing, fittings, and faucet at the time of
installation and startup.
1) Insert free end of feed water tubing into the
fitting on the storage tank.
2) Open feed water valve and tank valve and
allow tank to fill (about 3 minutes).
3) Turn off feed water valve, tank valve, remove
tank from tubing and set tank aside (15
minutes minimum).
D. Install the Drain Connection
IMPORTANT: Before starting this procedure,
inspect the condition of the drain piping, especially
in older homes where the traps and tailpieces can
be deceptively thin and frail. If in poor condition, it is
wise to inform the customer that the condition
should be remedied.
The drain saddle assembly is designed to fit around
a standard 1-1/2" OD drain pipe.
The drain saddle should always be installed above
(before) the trap and on the vertical or horizontal
tail piece. Never install the drain saddle close to the
outlet of a garbage disposal or plugging of the RO
drain line may occur.
1) Peel adhesive covering from the back of foam
square gasket and line up with the hole in the
saddle drain and apply. This gasket provides
a leak proof seal on the drain stand pipe.
2) Position both halves of drain saddle at
desired location on drain pipe.
3) Use bolts and nuts to clamp drain saddle onto
drain pipe. Do not over tighten and make sure
there is equal space between saddle halves
on each side.
4) Carefully drill hole through threaded fitting of
drain saddle (as shown in Photo 2) being
careful not to drill through opposite side of
drain pipe.
5) Insert drain tubing into compression nut and
tighten onto drain saddle.
E. Install the R.O. Membrane
The RO Membrane has been shipped to you in a
special preservative. Disconnect the tubing from
the end cap of the membrane housing. Then,
unscrew the end cap from the membrane housing
on the appliance; insert the membrane as
illustrated on the next page. The O-rings on the
product water tube of the membrane MUST FULLY
SEAT in the membrane housing for proper
operation. Also make sure that the Brine Seal on
the membrane seals with no gaps or wrinkles inside
the membrane housing. Once the membrane is
installed, replace the end cap and reconnect the
tubing.
To insure that all the special preservative is flushed
from the system before use, DO NOT use the first
two tankfuls of water produced by the system.

9
F. Make Initial Tubing Connections
It is advantageous to make some of the tubing
connections at this time, since the under-sink work
area is not so cramped and access to the
components is easier.
G. Install the Purification Assembly and
Storage Assembly
The purification assembly is usually mounted to the
right or left sink cabinet sidewall, taking into con-
sideration the space available and the tank
location. Generally, the tank is placed in the rear of
the cabinet while the purification assembly is posi-
tioned toward the front for cartridge accessibility.
To mount the purification assembly elevate at least
2" off the cabinet floor and, while keeping level,
mark the location of the mounting holes on cabinet
sidewall. Make small pilot holes with an awl or drill
and screw in the two mounting screws, leaving just
enough protruding to allow bracket mounting slots
to slide over them.
NOTE: If the cabinet sidewalls are not of solid
construction, the purification assembly can be set
on the cabinet floor and held against the sidewall
with the mounting screws.
The tank may be oriented either vertically or
horizontally. It is generally placed to the rear of the
cabinet but can be set in the front center (between
the sink basins) for ease of access if space permits.
H. Make Final Tubing Connections
With all of the components in place, the final tubing
connections can be made. When routing tubing
between components, several guidelines should be
observed.
Tubing runs should generally follow the con-
tour of the cabinets rather than interfere with
the cabinet storage area.
Strive for neatness and an orderly tubing
“flow” using fasteners (e.g. insulated
staples) to secure the tubing. Cut tubing to
the desired length.
Arrange the tubing so there are no sharp
bends and leave some “play” in the tubing
for ease of servicing.
Try to keep the tubing from the purification
assembly to the tank and faucet as short as
practical for good flow.
I. Install Ice Maker Hookup (optional)
Note: Check with refrigerator manufacturer for
compatibility with your refrigerator model.
The RO drinking water appliance can be connected
to any standard refrigerator ice maker or ice
maker/water dispenser. It should never be
connected to a commercial type bar ice maker.
Hooking up an ice maker involves connecting a tee
with shut off valve into the faucet tubing and routing
tubing over to the refrigerator. Do not hookup to
existing copper tubing.
Before turning off the existing tap water supply to a
refrigerator ice maker, always shut off the ice
maker first (usually by lifting the lever arm above
the bin to the upper most position). The ice maker
should only be turned on again after the RO system
has been drained several times and the tank has a
full supply of water.
NOTE: Before any service is performed on the RO
system, always turn off ice maker valve and the ice
maker unit. Only turn on when system is operating
and tank is full.
J. Start up the System
1) Double check that all connections are
secure.
2) Turn on feed water valve and check for
leaks. If any leaks are noted, turn off valve
and correct before proceeding.
3) Turn on storage tank valve and open faucet
until a steady stream of water flows. Close
faucet, wait at least 5 minutes and carefully
check for leaks. Correct as necessary.
K. Flush System of Preservative and Check
Operation
1) Lift faucet handle and allow tank to drain
completely of sanitizing solution. DO NOT
USE THIS WATER. When tank is empty,
the faucet will steadily drip. This is the rate
water is processed by the RO system.
2) With faucet handle in “up” position, measure
the rate of the steady drip from spout. Use a
graduated cylinder (in milliliters) and watch
with a second hand to calculate
approximate production in gallons per day
(milliliters per minute X 0.38 = gpd).

10
Proceed to check reject flow rate by
disconnecting tubing at drain connection
and measure as per above. The ratio
should be a minimum of 2.5 (reject) to 1
(product).
3) Close faucet and re-inspect system for
leaks. Instruct customer to wait at least 4
hours and drain tank again. The water
should be discarded as it may contain some
preservative/disinfectant solution.
4) System should be ready to use as soon as
the tank refills. If any objectionable taste is
noticed after second tank draining, instruct
customer to wait and drain tank the
following day. Only at this time should an
ice maker be turned on if one is connected
to the system.
SECTION V. OPERATION &
MAINTENANCE
A. Normal Operation
1) It is normal for the Total Dissolved Solids
(T.D.S.) of the water to be higher than
normal during the first 5 gallons of
operation; this is due to the sanitizing
solution and the new Post Filter. After this
water is rinsed to drain, the removal rate
should stabilize at a value greater than
75%. Water pressure affects the production
rate and quality.
2) R.O. systems produce drinking water at
relatively slow rates; it can take up to 8
hours or more to fill the holding tank.
Normal operation is to let the Holding Tank
fill with water and then draw water as is
needed. When the pressure in the Holding
Tank falls to a given pressure (as the water
is being used) the automatic shut-off valve
(A.S.O. Valve) will start water production
and the system will refill the Holding Tank.
When the holding tank is full and no water is
being used, the A.S.O. Valve will
automatically shut off the feed water to con
serve water.
The more water that is used (up to the capacity of
the system) the better the R.O. system will function.
Utilize other uses for the water, such as flowers,
pets and rinsing glassware.
After periods of non-use, such as a week’s
vacation, it is better to empty the holding tank and
allow the system to produce fresh water for use. If
the system is not used for 3-4 weeks or longer, it is
a good idea to re-sanitize the system and to
change the Activated Carbon and Sediment Filters.
B. Changing Filter
NOTE: THIS R.O. SYSTEM CONTAINS FILTERS
WHICH MUST BE REPLACED AT REGULAR
INTERVALS TO MAINTAIN PROPER
PERFORMANCE. USE ONLY FACTORY
APPROVED FILTERS.
Please see Page 3 for the recommended interval
for changing the filters. Local conditions may
dictate more frequent changes.
Use a drip pan to catch any water that may spill
when the filter housings are removed:
1) Close the Saddle Tapping Valve by turning
fully clock wise and open the Dispensing
Faucet by lifting the handle. Allow the
Holding Tank to empty.
2) Loosen and remove the appropriate Filter
Housing. Discard the cartridge(s).
3) Wash the inside of the Housing(s) using a
mild detergent and a soft cloth. Do not use
abrasive cleaners or pads. Thoroughly rinse
all soap from the housing before
reassembly.
4) To sanitize the system and replace the filter
cartridge(s):
NOTE: The system should be sanitized before
installing the activated carbon post filter cartridge.
a) Use a good quality unscented 5-1/4% liquid
bleach such as Clorox.
b) Add one cap full of bleach (this is 2 tsp. or
10 ml) to the sediment filter housing. Install
the sediment prefilter only. Check the
housing o-ring for proper position in its
groove, replace sediment filter housing on
R.O. assembly
c) If your RO system has a carbon prefilter
housing, add one cap full of bleach.
Carefully fill the housing with tap water and
temporarily install the housing, without
activated carbon pre-filter.
d) Add one cap full of bleach to the activated
carbon post filter housing. Carefully fill the
housing, without the activated carbon filter.
e) The dispensing faucet should be open,
slowly open the saddle tapping valve on the
feed water line.
f) As soon as water begins to drip out of the
dispensing faucet, close the faucet.
g) Let the system stand for 15 minutes.

11
h) At the end of the 15 minutes, in the
following order, close the saddle tapping
valve, close the holding tank valve, and
open the dispensing faucet to release the
pressure.
i) Remove the post carbon filter housing and
empty (repeat procedure if your system has
a carbon prefilter housing). Remove any
wrapping/packaging from carbon cartridges
j) and install in housings. Check the o-ring to
insure that it is positioned properly in its
groove and replace housing(s) on RO unit.
Disconnect the yellow product water tubing
that runs from the holding tank. Put 50
drops of bleach (this is ½ tsp. or 3 ml) into
the tubing and reconnect it.
k) Slowly open the saddle tapping valve. When
water begins dripping out of the dispensing
faucet, in the following order, close the
faucet and then open the holding tank valve.
l) Do not open the faucet for at least 8 hours.
m) Discard the first two full tanks of water
produced, they will contain chlorine.
n) When the faucet is first opened, expect air
and carbon fines (very fine black powder),
from the new carbon filter(s) to be rinsed
out. This is normal for the first tank of water.

12
C. For System Equipped with Quick Connect
Fittings
Your new Reverse Osmosis Drinking Water
Appliance may be outfitted with new generation of
user-friendly quick connect push-in fittings. Proper
use of the fittings is shown in the diagrams.
It is important that the tubing selected for use with
these connectors be of high quality exact size and
roundness, and with no surface nicks or scratches.
If it is necessary to cut the tubing, use a plastic
tubing cutter or sharp razor knife. Make a clean,
square cut.
An optional blue locking clip is installed in certain
fittings to provide extra security. Remove this clip
first before trying to remove tubing by sliding away
from fitting.
Should a leak occur at a fitting, the cause is usually
defective tubing.
To fix:
Relieve pressure
Release tubing
Cut off at least ¼” from end
Reattach tubing
Confirm connection is leak free
TO ATTACH TUBING...
TO RELEASE TUBING...

13
SECTION VI. TROUBLE SHOOTING GUIDE
Problem
Possible Cause
Solution
Low quantity of Product
Water from Holding Tank
Feed Water Saddle Valve is
plugged or closed.
Open Valve or unclog.
Clogged Sediment Prefilter or
Activated Carbon Prefilter.
Replace filters.
Low water pressure
Feed Water pressure must be
above 40 psig.
R.O. Membrane is fouled.
See Feed Water operating limits.
Correct cause of fouling, replace
Membrane.
Plugged In–Line Activated Carbon
Post Filter.
Replace Post Filter.
Air precharge pressure in Holding
Tank is too high.
Empty water from Holding Tank,
and with the faucet open, adjust air
pressure to 5–7 psig (5–8k Pa)
range.
Air precharge is too low.
Air bladder in the Holding Tank is
ruptured.
Replace tank.
Holding Tank Valve is closed.
Open Valve.
No drain flow, the Drain Restrictor
is plugged.
Clear or replace Drain Restrictor.
The Check Valve is stuck.
Free check valve.
The ASO Valve is malfunctioning.
Replace ASO Valve components.
In-Line Activated Carbon Post
Filter is plugged.
Replace Post Filter.
Low pressure at the
Dispensing Faucet
Air precharge in the Holding Tank
is too low.
Empty water from Holding Tank and
with the faucet open, adjust the air
pressure to 5–7 psig (5–8 kPa)
range.
Holding Tank Valve is partially
closed.
Check for leak age at the Air Valve
Stem.
Open Valve.
The Dispensing Faucet is out of
adjustment or faulty.
Repair or replace Dispensing
Faucet.
Heavy water use, Holding Tank is
depleted.
Allow Holding Tank to refill (adding
a second Holding Tank will increase
storage capacity).
Low Water Production.
See Low Quantity of Product Water
from Holding Tank section above
Clogged Sediment Prefilter or
Activated Carbon Prefilter.
Replace Filters.
High Total Dissolved
Solids (TDS) in the
Product Water
Low Water Pressure.
Feed Water Pressure must be
above 40 psig.
R.O. Membrane O–ring is
crimped.
Check Feed Water Saddle Valve.
Check O–ring.
R.O. Membrane brine seal is not
sealing up into the manifold head.
Check the brine seal.
R.O. Membrane is expended.
Replace Membrane. Check
operating limits.

14
Problem
Possible Cause
Solution
High Total Dissolved
Solids (TDS) in the
Product Water (continued)
The Product Water and Drain
Water lines are reversed.
Correct plumbing.
No drain flow, Drain Restrictor is
clogged.
Clear or replace Drain Restrictor.
No drain flow, the drain orifice in
the Dispensing Faucet is plugged.
Clear or replace Dispensing Faucet.
The ASO Valve is not closing.
Repair or replace the ASO Valve
Components.
New In-Line or Activated Carbon
Prefilter not rinsed completely.
Flush with several full tanks of
Product Water.
The Feed Water TDS has
increased.
An increase in Feed Water TDS will
give a corresponding increase in
Product Water TDS.
Tastes and odors in the
Product Water
The In-Line or Activated Carbon
Prefilter is exhausted.
Replace Filters.
There is foreign matter in the
Holding Tank.
Clean, flush and sanitize the
system. Replace the filters.
The Product Water and Drain
Water lines are reversed.
Correct plumbing.
Dissolved gasses in the Feed
Water.
Pretreat Feed Water to remove
dissolved gasses.
Increase in Product Water TDS.
See high TDS in the Product Water
section.
Faucet leaks or drips
Leaks from base of the delivery
tube.
O–ring is bad, replace O–ring.
Fitting leaks in general
Close the Feed Water Saddle Valve and relieve pressure before
disconnecting any tubing or replacing any fitting. Before replacing a
fitting, re–cut the tubing and re–insert into the fitting to see if that solves
the leak. If pipe threads are leaking, remove and retape with Teflon tape.

15
R.O. DRINKING WATER SYSTEM LIMITED WARRANTY
What Does This Warranty Cover?
This warranty covers any defects in materials and workmanship of the R.O. Drinking Water System when
installed and operated within recommended parameters, with the exceptions stated below.
How Long Does The Coverage Last?
The manufacturer will warrant its R.O. Drinking Water System, for a period of one year from the date of
purchase. All implied warranties including merchantability and fitness for a particular purpose are limited to one
year from the date of purchase for the R.O. Drinking Water System. Some states do not allow limitations on
how long an implied warranty lasts, so the above limitations may not apply to you.
What Will The Manufacturer Do?
The manufacturer will repair or replace at its discretion any defective component. You must pay any labor
charges. You must also pay for shipping or travel charges to return the defective part(s).
What Does This Warranty Not Cover?
This warranty does not cover the disposable sediment and carbon filters whose service life depends on feed
water conditions. In addition, the membrane is only warranted if the required feed water conditions are met.
The above warranty will also not apply to any part of the R.O. Drinking Water System that is damaged because
of neglect, misuse, alterations, accident, misapplication, physical damage, or damage caused by fire, acts of
God, freezing or hot waters or similar causes. Consequential and incidental damages are not recoverable
under this warranty. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation or exclusion may not apply to you.
We recommend that you use only the manufacturer's replacement parts since improper parts or incorrectly
performed maintenance or repair voids this warranty.
How Do You Get Service?
In order to be eligible for service under this warranty you must (a) contact your local dealer who supplied the
unit.
How Does State Law Apply?
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.