Whirlpool WHER25 User manual

System tested and certified by NSF International
against NSF/ANSI Standard 42 and 58. See performance data sheet for details.
7272844 (Rev. K 9/24/07)
Product No. 8576162
Manufactured and warranted by
Ecodyne Water Systems, Inc.,
1890 Woodlane Drive
Woodbury, MN 55125
How to Install, operate and
maintain your Reverse Osmosis
Drinking Water System
Model WHER25
If you have any questions or concerns when
installing, operating or maintaining your
Reverse Osmosis System
call our toll free number:
1-866-986-3223
Monday- Friday, 8 AM-9PM EST
or visit www.ecodyne.org
Installation and Operation Manual

2
TABLE OF CONTENTS
Unpack and Check Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Plan Your Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Overview and Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 1-Install Supply Water Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 2-Install Reverse Osmosis Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Step 3-Install Reverse Osmosis Filter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 4-Install Storage Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Step 5-Install Reverse Osmosis Faucet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Step 6-Connect Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-15
Step 7-Sanitize, Pressure Test, Purge System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
How Your Reverse Osmosis Water System Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-21
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-25
Exploded View & Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Questions?
Visit www.ecodyne.org
or call Toll Free
1-866-986-3223
Monday- Friday, 8 AM - 9PM EST

3
Packing List
Unpack and Check Your Carton
INSPECT SHIPMENT
Your Reverse Osmosis Drinking Water System is
shipped complete in one carton. Remove all items from
your shipping carton.
Check all items against the packing list below. Note any
items lost or damaged in shipment.
Note any damage to the shipping carton. Refer to the
exploded view and parts list in the back of the manual for
the part names and numbers of missing or damaged
items. If problems exist, refer to the website or the toll
free number listed throughout this manual.
Keep the small parts in the parts bag until you are ready
to install them.
NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber and do not permit
the use of saddle valves.
If you live in the state of Massachusetts, review
plumbing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installa-
tion.
Questions? Visit www.ecodyne.org or call Toll Free 1-866-986-3223

4
Plan Your Installation
FIG. 1
PLAN YOUR INSTALLATION
It is recommended to read through the entire manual
before beginning your installation. Follow all steps exactly.
Reading this manual will also help you get all the benefits
from your system.
Your Reverse Osmosis Drinking Water System can be
installed under a sink or in a remote location. Typical
remote sites are a laundry room or utility room. Review the
location options below and determine where you are going
to install your system.
NOTE: For best system performance, the feed water to
the system should be softened or less than 10 grains
per gallon hard.
UNDER THE SINK LOCATION
The Reverse Osmosis Filter Assembly and storage tank
are normally installed in a kitchen or bathroom sink cabi-
net. See Fig. 2.
A suitable drain point is needed for reject water from the
Reverse Osmosis filter.
REMOTE LOCATION
You can also locate the Reverse Osmosis Filter Assembly
and storage tank in a remote location away from the
Reverse Osmosis Faucet. You will need a nearby water
source and drain point.
See Fig. 3.
CHECK SPACE REQUIREMENTS
Check size and position of items for proper installation into
location chosen.
TOOLS NEEDED
Review the tools needed list. See Fig. 1. Gather needed
tools before proceeding with the installation. Read and fol-
low the instructions provided with any tools listed here.
Questions? Visit www.ecodyne.org or call Toll Free 1-866-986-3223
TOOLS NEEDED
Adjustable wrench
Tape MeasurePhillips Screwdriver
Flathead Screwdriver
Drill & Drill bits, if required.
Large Adjustable Jaw Pliers or Pipe Wrench

5

6
Overview and Site Preparation
OVERVIEW
There are seven easy steps to installing your Drinking Water
system. They are as follows:
STEP 1 - Install Cold Water Supply fitting
STEP 2 - Install Drain Adapter
STEP 3 - Install Reverse Osmosis Assembly
STEP 4 - Install Storage Tank
STEP 5 - Install Reverse Osmosis Faucet
STEP 6 - Connect Tubing
STEP 7 - Sanitize, Pressure Test, Purge System
These steps are explained in detail over the next few pages.
It is recommended to read through the entire manual before
beginning your installation. Follow all steps exactly. Reading
this manual will also help you receive and use all the bene-
fits your Reverse Osmosis System can give you.
PREPARE SITE FOR INSTALLATION
1. Before starting, close the hot and cold water shutoff
valves (See Figure 5).
2. Temporarily place tank and filter assembly into cabinet.
Double check position of items and space required for
proper installation.
3. Remove tank and filter from cabinet and set aside.
NOTE: You must check and comply with all local plumb-
ing codes.
NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber and do not permit the
use of saddle valves.
If you live in the state of Massachusetts, review plumb-
ing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installation.
FIG. 4
Questions? Visit www.ecodyne.org or call Toll Free 1-866-986-3223

7
Step 1 - Install Supply Water Fitting
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FIG. 5
Saddle Valve Connection
(Included in package)
Clamp Z
Nut
Nut - tighten
if necessary
Insert
Ferrule
(Plastic)
Use to Connect
Tubing
Handle
Valve
Clamp X
Seal
CHOOSE TYPE OF WATER FITTING TO INSTALL
Locate the cold water line in the sink cabinet. It is recom-
mended, but not required, that the cold water line be soft
water. You can use the saddle valve provided with your unit
to tap into the cold water line. See Fig. 5. Or you can pur-
chase standard pipe fittings locally such as a compression
fitting. The fitting must provide a leak-tight connection to the
Reverse Osmosis 1/4" tube.
NOTE: Local code may dictate which type of water fit-
ting is used. Consult a plumber if you are not familiar
with local codes or plumbing procedures.
NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber and do not permit the
use of saddle valves.
If you live in the state of Massachusetts, review plumb-
ing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installation.
INSTALL SADDLE VALVE
(Included with your package)
This fitting will be installed on the cold water pipe. The fitting
must provide a leak-tight connection to the Reverse
Osmosis 1/4" tubing.
Complete the following steps to install the saddle valve
assembly.
1. Review Fig. 5 and familiarize yourself with all parts of the
saddle valve. This valve will self-tap a hole in copper tub-
ing or plastic pipe.
IMPORTANT: Before starting, close the hot and cold
water shutoff valves (See Figure 5).
2. If installing on iron pipe, drill a 1/8” hole for the piercing
pin.
IMPORTANT: If a battery-powered hand drill is not
available and an electric drill is used, ensure that the
drill is properly grounded.
3. Place the seal on the inside of Clamp X. See Fig. 5. Turn
the valve handle all the way out.(counter-clockwise) Be
sure the piercing pin does not stick out beyond the seal.
4. Place Clamp X and Z around the pipe. Secure in place
with two screws. Tighten both screws evenly. Do not over
tighten screws. See Fig. 5.
5. Turn the valve handle all the way in. (clockwise) This will
pierce the wall of the pipe. See Fig. 5.
6. Do not connect the tubing to the fitting at this time. This
will occur later in the installation.
NOTE: Once the saddle valve is installed, the nut near
the handle may need to be tightened to prevent possi-
ble leaks.
Pre-Drill
1/8'' Hole
(Iron Pipe)
Cold Water
Shutoff Valve
Hot Water
Shutoff Valve

8
Step 2 - Install RO Drain Under Sink
FIG. 6
FIG. 7
FIG. 8
INTRODUCTION
A suitable drain point is needed for the reject water from
the Reverse Osmosis Filter. You have two options to
choose from:
• Install the Drain Adapter included with your unit
See Fig 6, Fig. 7, and Fig. 8. This is used in under the
sink installations. The drain adapter kit is installed onto
your sink drain pipe above the P-trap. See Fig. 6.
• Use another existing drain in your home
(See Fig 9, Fig. 10) This is usually used in remote
location type installations. The drain tube from the
Reverse Osmosis Filter runs directly to an open drain.
See Fig. 9 & 10.
NOTE: Local code may dictate which type of drain
installation is used. Other than local code, either
drain install type may be used in both under the sink
or remote location installations. Consult a plumber if
you are not familiar with plumbing procedures.
INSTALL DRAIN ADAPTER KIT
(Under sink Installation)
In an under the sink installation, you normally use the
(P-trap) drain adapter. A drain adapter kit is included in
your package. Review the drain adapter kit parts in Fig. 7.
The drain adapter is always installed in the sink drain
pipe, above or ahead of the P- trap. See Fig. 6 & 8. Be
sure to comply with your local plumbing codes. The drain
adapter fits 1-1/2" sink drain pipes. Other drain pipe fit-
tings, purchased locally, may be needed in addition to the
adapter.
1. Slowly disassemble the sink drain pipe between the
sink P-trap and the sink tailpiece. See Fig. 6 & 8.
2. Clean the sink tailpiece to assure a leak-tight fit.
3. Install drain adapter directly onto the sink tailpiece
using the ferrule and nut. Snug the nut, but do not
tighten. See Fig. 7.
4. Assemble the drain tubing connector to the drain
adapter using the ferrule and nut. Snug the nut, but do
not tighten. See Fig. 7.
NOTE: Locate so drain tubing from the Reverse
Osmosis faucet will make a straight run to the
adapter, without dips, loops, low spots or kinks.
See Fig. 8.
5. Turn the connector to about 45° (10:00 or 2:00 posi-
tion). See Fig. 7. Tighten the nut securely.
6. Assemble the P-trap to the drain adapter, and other
drain pipe fittings as required to complete the drain
run. See Fig. 6.
Note: If needed, you can cut the unthreaded end of
the adapter to make it fit. Do not cut too short or
the adapter will not make a leak-tight seal with the
connecting fitting.
7. Tighten all connections, but do not over tighten plastic
connections.
Drain
Adapter
P–Trap
P–Trap
Sink Tailpiece
Drain Adapter
Drain Tubing
Connector
Cut, if
needed.
45°
45°
2:00
10:00
Ferrule
Single trap
Double Trap
Nut
Nut
Ferrule
Under The Sink Installation
IMPORTANT: Locate drain adapter so when the black drain tube
from the Reverse Osmosis Faucet is installed later
on, it will make a straight run to the adapter, with-
out dips, loops, low spots or kinks
P-Trap
HOT COLD
Drain Adapter
Black Drain
Tube

9
Step 2 - Install RO Drain In Remote Location
FIG. 10
FIG. 9
INSTALL A REMOTE DRAIN POINT
AND AIR GAP (Remote Location)
You can also run the drain tubing to an existing drain in
the house. A floor drain, laundry tub, standpipe, sump,
etc. are suitable drain points. See Fig. 10. This type of
drain is the preferred over the p- trap drain adapter.
Check your local codes. Longer lengths of tubing (see
parts list in back of manual) may be needed.
Always be sure to provide an air gap between the end of
the hose and the drain point. This will prevent water from
backing up into the system. Airgaps are required code in
most areas.
To install a remote drain point, complete the
following steps:
1. Locate the 1/4” red tubing on the Reverse Osmosis
filter assembly. See Fig. 9.
2. Determine if this length is long enough to reach the
drain point.
3. If not, disconnect the 1/4” red tubing and replace with
an adequate length of tubing to reach the drain point.
Refer to Step 5 later in the manual on how to discon-
nect and connect tubing.
Note: A flow control insert is located in the red
tube. Refer to Fig 27. This insert must be saved
and placed in the new length of tubing.
4. Run the tubing to the drain point and secure at the
end with a bracket (purchased locally). See Fig. 10.
Provide a 1-1/2” air gap between the end of the tube
and the drain. See Fig. 10.
Outside Faucet
(Hard Water)
Soft, Cold Water
Soft, Hot
Water
Outside Faucet
(Hard Water)
Floor
Drain
Water
Softener
Hard
Water
to House
RED
Tubing to
Drain
Main
Shutoff
Valve
Storage
Tan k
YELLOW
Tubing to
Tank Storage
Water Meter
Reverse
Osmosis
System
GREEN Tubing
to Reverse
Osmosis
System
BLUE
Tubing to
Reverse
Osmosis
Faucet
Stand pipe
Airgap
1-1/2”
Sump
Airgap
1-1/2”
A
irgap
1-1/2
”
Airgap
1-1/2”
Laundry Tub
Water Heater
Shut-off
Valve
Reverse
Osmosis
Drain
Hard Water Line
1/4'' RED Tubing
Remote Location
Installation
Soft water
to Reverse
Osmosis
System

10
Step 3: Install RO Filter Assembly

11
FIG. 12
Step 4 - Install Storage Tank
The fitting on the supply tank may need to be tightened
7-8 turns to get a good seal.
Do not overtighten.
INSTALL STORAGE TANK
1. Apply thread sealing tape to the threads on the nipple
at the top of the tank. See Fig 12.
2. Locate the tubing connector. See Fig. 12. Tighten the
tubing connector with a wrench onto the tank nipple 7-
8 turns, being careful not to cross thread or overtight-
en.
3. Do not connect the tube at this time. This will occur
later in the assembly.
4. Place the storage tank next to the Reverse Osmosis
Assembly. The tank can be placed upright or on its
side.
Storage Tank
Tubing Connector
Tank Nipple
Questions? Visit www.ecodyne.org or call Toll Free 1-866-986-3223
Tubing Insert
Tubing Nut

12
SELECT LOCATION OF REVERSE OSMOSIS
FAUCET MOUNTING HOLE
You will need to select the location of the Reverse
Osmosis Faucet. You have three options to choose from:
• Use the existing sink top hole for the spray hose or
soap dispenser (Must be 1-3/8” in diameter)
• Drill a new hole in the sink
• Drill a new hole in the countertop next to the sink
1. Determine where you are going to install your Reverse
Osmosis Faucet.
2. Check to ensure the Reverse Osmosis faucet will mount
flat against the mounting surface.
3. Visually review the routing of the tubes from the
Reverse Osmosis filter assembly to the faucet. Check to
ensure there is adequate tube routing space between
the faucet and filter assembly.
3. If drilling is needed, drill a 1-3/8" diameter hole in the
mounting surface.
IMPORTANT: Drilling holes into countertops and
sinks should only be performed by a qualified
installer who is certified for drilling such materials.
Drilling of surfaces made of stone or solid surface
materials such as granite, marble, Corian™ or other
plastic resin products or sinks made of porcelain
and stainless steel may cause permanent, irrepara-
ble damage to the sink or countertop surface.
Step 5: Install RO Faucet
FIG. 13

13

14
Cut tubing square with end of tubing round,
smooth, with no cuts, nicks or flat spots.
Step 6 - Connect Tubes
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FIG. 20
Tube Correctly Cut
Collet
Collet (Depress to
Remove Tubing)
Tubing
Fitting
O-Ring Seal
Collet
FIG. 17
HOW TO CUT AND CONNECT THE TUBES
Your Reverse Osmosis Water System includes push-in fit-
tings for quick tubing connection. Review the following
instructions before connecting the tubes in the next step.
Cut tubes to length
1. Use a sharp cutter or knife to cut the end of tubing.
Always cut the tubing square. See Fig. 17.
2. Inspect the end (about 1") of the tubing to be sure
there are no nicks, scratches or other rough spots. If
needed, cut the tubing again. See Fig. 17.
Note: Tubing lengths should allow for the removal
of the assembly from the hanger washers for serv-
icing. If tubing lengths are shortened for neater
appearance, it may be necessary to keep the
assembly on the hanger washers for service.
Connect tubes
1. Push tubing through collet, until it engages the o-ring.
See Fig. 18. Continue pushing until the tube bottoms
out against the back of the fitting. See Fig. 19. A com-
mon mistake is to stop pushing when the tube engages
the o-ring. This will lead to future leaks. When a 1/4”
tube is fully engaged, 11/16” of the tube has entered
the fitting. When a 3/8” tube is fully engaged, 3/4” of
the tube has entered the fitting. See Fig. 18 & 19.
2. If using tubing other than tubing supplied with the sys-
tem, be sure it is of high quality, exact size and round-
ness with a smooth surface.
Disconnect Tubes
1. Push the collet inward with a finger tip. See Fig.21.
2. Continue holding collet inward while pulling the tubing
out. See Fig. 21. Tube Fully Engaged With Fitting
Disconnect Tubing
Collet and O-ring
FIG. 21
FIG. 19
Fig. 18
Tube
Push In Fitting
Collet
Tube Partially Engaged With Fitting
O-Ring
O-Ring

15
Step 6 - Connect Tubes
CONNECT YELLOW TUBE TO STORAGE TANK
1. Locate the yellow tube. One end is attached to the Reverse
Osmosis filter assembly.
2. Run the other end of the yellow tube to the fitting on top of
the storage tank. See Fig. 22.
3. Cut tube square and to length. See Fig. 17.
4. Do not connect at this time. This will occur in the sanitizing
step.
CONNECT GREEN TUBE TO COLD WATER
SUPPLY PIPE
1. Run one end of the 1/4” green tube to the fitting on the water
supply pipe. See Fig. 22.
2. Cut tube square and to length. See Fig. 17.
3. Connect to saddle valve. (This is a compression fitting.)
4. Run the other end of the green tube to green collet to the fit-
ting on the left side of the Reverse Osmosis filter
assembly.
5. Cut tube square and to length. See Fig. 17.
6. Insert all the way into the fitting. See Fig. 18 & 19.
7. Pull on the tube to be sure it is held firmly in the fitting.
CONNECT RED TUBE TO REVERSE OSMOSIS
FAUCET
The red tube connection was completed in the faucet
assembly steps.
CONNECT BLUE TUBE TO REVERSE OSMOSIS
ASSEMBLY
1. Locate the blue tube. One end is attached to the faucet.
2. Run the other end of the 3/8" blue tube to the blue collet on
the right side of the Reverse Osmosis filter assembly.
3. Cut tube square and to length. See Fig. 17.
4. Insert all the way into the fitting. See Fig. 18 & 19.
5. Pull on the tube to be sure it's held firmly in the fitting.
CONNECT BLACK TUBE FROM REVERSE OSMOSIS
FAUCET TO DRAIN ADAPTER
1. Locate the 30" length of 3/8" black tube. One end is attached
to the faucet. Fig 22.
2. The other end needs to be attached to the black collet on the
sink drain adapter.
3. Cut this tube as needed to route in as straight of a run as
possible, without loops, dips, low spots or kinks.
4. Cut the end of the tube square. See Fig. 17.
5. Insert all the way into the fitting. See Fig. 18 & 19.
6. Pull on the tube to be sure it is held firmly in the fitting.
Note: Tubing lengths should allow for the
removal of the assembly from the hanger wash-
ers for servicing. If tubing lengths are shortened
for neater appearance, it may be necessary to
keep the assembly on the hanger washers for
service.
NOTE: Codes in the state of Massachusetts
require installation by a licensed plumber and
do not permit the use of saddle valves.
If you live in the state of Massachusetts, review
plumbing code 248-CMR of the Commonwealth
of Massachusetts before proceeding with the
installation.
FIG. 22
saddle valve
drain
adaptor
sink p-trap
COLDHOT
3/8" black tubing
tubing connector
1/4" GREEN
1/4" RED
3/8" BLUE
3/8" YELLOW
Tube Connections
Note:Tube colors match
Collet colors
If tubing needs to make a
sharp bend, use included
tube benders to prevent
kinking.
Tube
Bender

16
Step 7 - Sanitize, Test and Purge System
SANITIZE THE SYSTEM
Sanitizing is recommended immediately after installa-
tion of the Reverse Osmosis system. It’s also recom-
mended after servicing inner parts. It is important that
the person installing or servicing the system have
clean hands while handling inner parts of the system.
Complete the following steps to sanitize the system.
See Fig. 23.
1. Turn off the water supply to the Reverse Osmosis
system.
2. Open the Reverse Osmosis faucet. If the tank is not
already empty, allow the water to empty.
3. Locate an eyedropper included in package and
common household bleach (5.25%).
4. Add 3 ml. of bleach into open end of yellow tank
tubing. Handle bleach according to bleach manufac-
turer’s recommendations. See Fig. 23.
5. Connect yellow tank tubing to tank connector. See
Fig. 12 and 23.
6. Sanitizing the system will be completed during the
pressure test and purging steps on the following
page.
Note: The bleach must be removed from the
system before drinking the water. See purging
instructions on the next page.
FIG. 23
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17

18
How Your RO Water System Works
HOW YOUR REVERSE OSMOSIS SYSTEM
WORKS
Introduction: Your Reverse Osmosis (RO) Drinking
Water System uses your household water pressure to
force water through three filters. Minerals and impuri-
ties are filtered out. Delicious tasting drinking water
goes to the storage tank-ready for your use. Minerals
and impurities are sent down the drain. The following
paragraphs will explain in detail how your Reverse
Osmosis Drinking Water System works.
Prefilter: Water from the cold supply pipe enters the
prefilter. See Fig. 25. The prefilter has a replaceable
sediment cartridge with activated carbon in its compo-
sition. The cartridge reduces taste, odor, sand, silt,
dirt, other sediments, and up to the amount of chlorine
shown in the specifications.
Reverse Osmosis Cartridge: Filtered water flows
from the prefilter, to the Reverse Osmosis membrane
cartridge. See Fig. 25. The Reverse Osmosis cartridge
is a tightly wound special membrane. The membrane
reduces the dissolved solids and organic matter. High
quality product water (about one ounce per minute)
exits the Reverse Osmosis cartridge. The product
water flows to the storage tank, postfilter or Reverse
Osmosis faucet. See Fig. 25. Reject water, with the
dissolved solids and organic matter, is routed to the
drain. See Fig. 25.
Storage Tank: The storage tank holds product water.
See Fig. 25. A diaphragm inside the tank holds water
pressurized to about 30 psi when the tank is full. This
provides fast flow to the Reverse Osmosis faucet.
When the tank is empty of water, it is pressurized to
5 - 7 psi.
Postfilter: Before going to the Reverse Osmosis
faucet, product water goes through the postfilter. See
Fig. 25. The postfilter is an activated carbon type filter.
Any remaining tastes and odors are reduced from the
product water. Clean, high quality drinking water is
available at the faucet.
Reverse Osmosis Faucet: The sink or countertop
faucet has a hand operated knob to access drinking
water. See Fig. 25. An air-gap is built into the faucet
drain water connection to comply with plumbing codes.
See Fig. 25.
Faucet Electronics: Inside the faucet base is a battery
operated 6 month timer. See Fig. 14.
An amber LED indicator is also located in the front of
the faucet base. This LED will flash continuously after
6 months have passed. This indicates that it is time to
replace the battery, prefilters and postfilters.
Shutoff Assembly: The unit has an automatic shutoff
system to conserve water. When the storage tank has
filled to capacity, and the drinking water faucet is closed,
pressure closes the shutoff to stop flow to the drain.
After enough drinking water is used, pressure in the
system drops, and the shutoff opens to allow the tank to
be refilled. See Fig. 25.
Check Valve: A check valve is located in the Reverse
Osmosis manifold, above the center sump. The check
valve prevents a backward flow of product water from
the storage tank to drain. A backward flow could
damage the Reverse Osmosis Membrane. See Fig. 25.
Flow Control: Water flow to the drain is restricted by
the flow control. It maintains the desired flow rate to
obtain the highest quality drinking water. The flow con-
trol is located in the end of the 1/4" red drain tubing, at
the Reverse Osmosis manifold drain port. See Fig. 25.
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19
How Your RO Water System Works
FIG. 25
PREFILTER PRODUCT
WATER
STORAGE
RO
MEMBRANE
check
valve
drain flow
control
AUTOMATIC
SHUTOFF
WATER
IN
POSTFILTER
PRODUCT
WATER FAUCET
air gap
gravity
drain
RED YELLOW
BLUE
GREEN
PRODUCT WATER
BLACK
WASTE WATER
Water Flow Description
1. Water enters prefilter. Sand, silt and other sediments are reduced. Chlorine is also reduced. See Fig. 25.
2. Water leaves prefilter and proceeds to the Reverse Osmosis Cartridge. See Fig. 25.
3. Water enters the Reverse Osmosis membrane. Dissolved solids are reduced. See Fig. 25.
4. Processed water leaves the Reverse Osmosis Membrane and flows to the storage tank. See Fig. 25.
5. Waste water with dissolved solids leave the Reverse Osmosis membrane and flows to the drain. See Fig. 25.
6. Faucet is activated. See Fig. 25.
7. Processed water leaves the storage tank and flows to the post filter filtered to ensure fresh taste. See Fig. 25.
8. Water flows to the Reverse Osmosis faucet. See Fig. 25.
13
2
4
5
6
7
8
Reverse Osmosis Water Flow Schematic
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20
Maintenance
PREFILTER/POSTFILTER MAINTENANCE
NOTE: It is recommended to replace the battery,
prefilter and postfilter cartridges at least every 6
months of product water use. Replace more often if
they begin to plug with sediments.
The prefilter and postfilter are replaceable sediment
cartridges with activated carbon in its composition. See
Fig. 26. You must periodically replace the prefilter and
postfilter cartridge. This will protect the RO membrane
from being destroyed by chlorine. It will also prevent
the filters from plugging with sediments.
You may notice a slower output of product water as the
prefilter and postfilters build up with sediments.
Replace the prefilter and postfilter cartridges when this
occurs. You should replace the battery whenever you
replace the cartridges.
RO MEMBRANE CARTRIDGE MAINTENANCE
The Reverse Osmosis cartridge is a tightly wound spe-
cial membrane. See Fig. 26. The membrane reduces
the dissolved solids and organic matter. The life of the
Reverse Osmosis membrane cartridge depends mostly
on the pH and hardness of the supply water. (see
specifications). Cartridge life is shorter with higher pH.
For example, if supply water pH is from 6.8 to 7.7, the
cartridge may last for well over one year. However, car-
tridge life may be as short as 6 months if the pH is as
high as 8.5 to 10. Higher pH weakens the cartridge
membrane and causes pin-hole leaks. It's time to
replace the Reverse Osmosis cartridge when the pro-
duction rate and/or quality of product water drops.
Product water may begin to taste different or bad, indi-
cating solids and organics are passing through the
Reverse Osmosis membrane. See Reverse Osmosis
cartridge replacement.
REVERSE OSMOSIS CARTRIDGE REPLACEMENT
Complete the following steps to replace the cartridges.
1. Remove (turn to the left) the pre filter cartridge from
the filter head to relieve pressure on the Reverse
Osmosis cartridge.
2. Remove the Reverse Osmosis cartridge.
3. Remove the post filter cartridge.
4. Discard the cartridges in a proper manner.
5. Install new cartridges in reverse order (post filter,
Reverse Osmosis and then prefilter). Turn cartridges
to the right to re-attach to the filter heads.
6. Remove and replace the timer battery. See Fig. 14.
7. Purge the Reverse Osmosis membrane cartridge.
See page 17 for instructions.
PREFILTER/POSTFILTER CARTRIDGE
REPLACEMENT
Complete the following steps to replace the cartridges.
1. Remove the pre filter cartridge (turn to the left) from
the filter head. Then remove the post filter cartridge.
2. Discard the cartridges in a proper manner.
3. Install new cartridges in reverse order (post filter
first, then pre filter). Turn cartridges to the right to re-
attach to the filter heads.
4. Remove and replace the timer battery. See Fig. 14.
5. Purge the Reverse Osmosis membrane cartridge.
See page 17 for instructions.
Prefilter
Cartridge
RO Cartridge
Postfilter
Cartridge
Cover
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FIG. 26
Turn to the left to
remove