Pentair EVERPURE CONSERV 75S User manual

FOODSERVICE EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
INTRODUCTION
The Everpure Conserv 75S System is a pre-engineered, pre-assembled solution designed to provide high purity water for
steam applications. It combines a number of water treatment technologies into one easy-to-install package. The system
provides reduction of sediment. It also limits corrosion* and scale* by reducing TDS, chlorine* and chloramines*.
INSPECTION
Before mounting the Conserv 75S System, inspect the parts. Use the table and illustration provided to verify the parts and
quantities provided. If any parts are missing, contact Customer Service at 800.942.1153 (US only)/630.307.3000 or by email at
[e-mail].
Parts
1. Back Panel Assembly
2. GRO-75EN RO Membrane Cartridge
3. 4CC Mineral Cartridge
4. 4FC5 Filter Cartridge
5. Cover
6. Port Plug
7. TDS Meter
8. Support Leg
9. Power Cord
10. Blue, White and Red Tubing
Conserv 75S
EV9976-00 (US Market)
EV9976-01 (European Market)
EV9976-02 (British Market)
EV9976-03 (Australian Market)
EVERPURE®CONSERV®75S HIGH EFFICIENCY REVERSE OSMOSIS (RO) SYSTEM
1
24
3
5
9
6
7
8
10
* Not performance tested or certified by NSF®
ORIGINAL INSTRUCTIONS

2 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
Tools Required
• Hand or Electric Drill • Phillips Screwdriver
• Air Pressure Gauge • Towel
• Pencil • Safety Glasses
• Tape Measure • Drill Bits: 1/8", 1/4" and
3/8"
• Utility Knife or Tube Cutter
(for plastic tubing)
NOTE: Not all tools listed may be necessary for installation.
Read installation procedures before starting to
determine required tools.
SELECTING A MOUNTING LOCATION
1. Give consideration to the weight of the unit when
operating, i.e. when filled with water. Operating weight of
the Everpure®Conserv®75S System is approx.:
• 53 lbs (24 kgs)
2. The location should allow for:
• The Conserv 75S System may be wall mounted or set
on its base .
• Adequate space for “in” and “out” water line
connections.
• Be near a drain for flushing.
• Accessible to a 100 - 240 Vac/50/60 Hz AC wall plug.
3. The inlet water supply must meet the requirements listed
in the section "Operating Specifications".
DIMENSIONS
10.20 in
(259 mm) 16.95 in
(431 mm)
18.70 in
(475 mm)
Figure 1
SAFETY INSTRUCTIONS
NOTE: This appliance can be used by children aged
from eight (8) years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given supervision
or instruction concerning use of the appliance
in a safe way and understand the hazards
involved.
NOTE: The appliance is only to be installed in
locations where its use, maintenance and
cleaning is restricted to trained adult
personnel. No one should play with the
appliance.
NOTE: Children should be supervised to ensure that
they do not play with the appliance.
NOTE: Cleaning and user maintenance shall not be
made by children without supervision.
NOTE: The appliance is not suitable for installation in
an area where a water jet could be used.
NOTE: If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent or similarly qualified persons in order to
avoid a hazard.
WARNING: Installation shall comply with applicable
local, state, and national plumbing and
electrical regulations.
WARNING: This appliance must be grounded. This
appliance is equipped with a cord having
an appliance-grounding conductor and a
grounding plug. The plug must be plugged
into an appropriate outlet that is installed
and grounded in accordance with all
local codes and ordinances. If the supply
cord is damaged, it must be replaced by
the manufacturer, its service agent or
similarly qualified persons in order to
avoid a hazard.
WARNING: Improper connection of the appliance-
grounding conductor can result in a risk
of electric shock. Check with a qualified
electrician or service representative if
you are in doubt whether the appliance is
properly grounded. Do not modify the plug
provided with the appliance; if it will not fit
in the outlet, have a proper outlet installed
by a qualified technician.
WARNING: The appliance is intended to be
permanently connected to the water mains
and not connected by a hose-set. The
appliance is not suitable for installation in
an area where a water jet could be used
and must not be cleaned by a water jet.

3EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
WARNING: Before installing the system, make certain
your water supply complies with the
following operating specifications. Failure
to do so may reduce the effectiveness of
the system and will void the warranty.
Consult your local water treatment
utility or a certified water testing lab to
determine the quality of your water.
WARNING: Do not use with water that is
microbiologically unsafe or of unknown
quality without adequate disinfection
before or after the system. The Everpure®
Conserv®75S System will not protect
against disease-causing bacteria or
remove harmless, naturally-occurring
bacteria.
WARNING: The Conserv 75S System contains
replaceable components that are critical to
the efficiency of the system. Replacement
of the reverse osmosis component should
be with one of identical specifications, as
defined by the manufacturer, to assure the
same efficiency and contaminant reduction
performance.
WARNING: The Conserv 75S System contains filter
cartridges and an RO membrane cartridge
included with the system that have limited
service lives. critical for the effective
reduction of total dissolved solids. Product
water should be tested periodically to
verify that the system is working properly.
WARNING: The Conserv 75S System shall only be
used for arsenic reduction on chlorinated
water supplies containing detectable
residual free chlorine at the system inlet.
Water systems using an in-line chlorinator
should provide one (1) minute of chlorine
contact time before the unit.
CAUTION: The Conserv 75S System must be
protected against freezing which can
cause the filter housing to crack, resulting
in water leakage. Do not use electrical
heating tape or propane torch on this unit.
CAUTION: Make certain the unit is firmly attached to
wall to prevent it from falling and possibly
becoming damaged.
NOTE: Substances listed as reduced are not
necessarily in your water. System must be
maintained according to manufacturer's
instructions, including replacement of filter
cartridges.
NOTE: Your water must be within required limits
for satisfactory operation. If not, the RO
membrane cartridge’s life may be shortened
and your warranty will be voided (see
Operating Specifications).
NOTE: Install on cold water line only.
NOTE: Do not install where system will be exposed to
direct sunlight.
NOTE: Make certain that installation complies with all
state and local laws and regulations.
NOTE: Use only plumbers tape without adhesive
backing to seal joints. Do not use pipe
compound (“pipe dope”), sticks, or similar
compounds with this unit; they contain
petroleum derivatives which can cause
crazing and cracking of the plastic in the filter
housing.
NOTE: Use only soap and water to clean components.
NOTE: Do not use aerosol sprays (bug spray, cleaning
fluids, etc.) near the Conserv 75S System.
They contain organic solvents which can cause
crazing and cracking of the plastic in the filter
housing.
NOTE: During extended periods of non-use, turn OFF
the water supply to the unit and remove the
cartridges. Place the cartridges in a sealed
plastic bag. Store them in a refrigerator for
future use. When restarting the unit, the
cartridges are reinstalled and flushed per
instructions.
OPERATING SPECIFICATIONS
WARNING: Before installing the system, make certain
your water supply complies with the
following operating specifications. Failure
to do so may reduce the effectiveness of
the system and will void the warranty.
Consult your local water treatment
utility or a certified water testing lab to
determine the quality of your water.
Temperature: 32 - 100°F (0 - 37.7°C)
Dynamic Operating
Pressure:
40 - 85 psi (2.7 - 5.8 bar, 0.27 - 0.58
MPa), non-shock
Maximum Static
Pressure
125 psi (8.6 bar, 0.86 MPa)
Total Dissolved Solids: 1,000 ppm maximum
Sulfide, Iron and
Manganese: Less than 0.1 ppm
Water Supply pH Limits: 4 to 11
Turbidity: 1.0 NTU maximum
For cold water use only.

4 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
EVERPURE CONSERV®75S SYSTEM
1Secure Manifold Wall Mount 2Tubing Locations
NOTE: Feet may be removed.
53 lbs
(24 kgs)
Power Cord
Product Water
3/8" Tubing to the
Application
Waste Water
1/4" Tubing to
Drain Supply Water In
3/8" Tubing

5EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
3Install Pentair®GRO-75EN RO Membrane Cartridge
BlueRed
White
GRO-75EN
1
3
2
GRO-75EN
6
5
4
4Install Everpure 4CC Mineral and 4FC5 Filter Cartridges
1
2
1
2
4CC
4FC5
3/16”
90°
1
2

6 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
5Connect Tubing and Power
Red 1/4"
Tubing to
Drain
Power Cord
Blue 3/8"
Tubing to
Application
Valve
White 3/8" Tubing
from Water Supply
PUT SYSTEM INTO OPERATION  QUICK START
6Flush Everpure®4FC5 Cartridge
Insert 3/8"Tube
Closed
Power Off
1
3
Closed
5
46
7
8
Closed
Remove Plug
Install Plug
Insert 3/8"
Tubing
Remove 3/8" Tubing
Replace Plug
Open
Flush for Five
(5) Minutes
2
9
9

7EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
7Flush GRO-75EN RO Membrane Cartridge
1Closed
7Open
Flush for 24
Hours
Open
9
4
Closed
Insert 3/8" Tubing
2
Power Off
5
Power On
8
6
Open Tank Valve
3
8Final Flush
Power On
3
NOTE: During the final flush, the storage tank and the 4CC
Mineral Cartridge are flushed.
When Pump Stops,
Open for Five (5)
Minutes.
Repeat Four (4) Times
Close for 30
Minutes
2

8 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
9Set Blending Valve
Power
On
Blending
Valve
Closed
Open
Open
2"
Solid Blue
Blending Valve
1/4 Tu
rn
2"
Solid Blue
Blending Valve
1/4 Turn
1
2
3Repeat Until
Flashing Blue
Blending Valve
1/8 Turn
Press
Press

9EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
HOW REVERSE OSMOSIS (RO) WORKS
The Everpure Conserv 75S System uses a semi-permeable
membrane to reduce scale and corrosion. The RO membrane
cartridge contains multiple layers of micron-thin film wound
around a hollow center core. Water molecules can pass
through the cartridge, while dissolved salts are rejected.
Your water supply is prefiltered to reduce dirt and chlorine
that may foul the membrane. The RO membrane cartridge
separates this prefiltered water into RO WATER and REJECT
WATER. Water pressure forces water through the membrane
within the RO membrane cartridge, and into the storage tank.
This is the RO water. Dissolved salts cannot pass through the
membrane and are sent to the drain as reject water. When
the application valve is opened, RO water (permeate) is drawn
from the storage tank through a post-system filter. The post
system filter adds minerals for pH balance.
The Conserv 75S System also features an auto shut-off valve
which shuts off the system once the pressure in the storage
tank reaches 2/3 of the incoming water pressure (your water
pressure). When you use water from the storage tank, the
pressure inside the tank drops and the auto shut-off valve
opens. The system then begins to operate, replenishing the
water you took from the storage tank. The storage tank can
hold up to 3.2 gals (12.1 L) of water at a time.
NOTE: When used under operating conditions specified
in this manual, the RO membrane cartridge of the
Conserv 75S System should last 12 to 24 months.
The precise life span of the Pentair®GRO-75EN RO
Membrane Cartridge will depend on the quality of
the water entering the system and the frequency
with which you use it. Frequent use prevents the
dissolved salts from building up on the membrane
as scale. The more water the system is required to
produce, the longer the membrane will last.
INSTALLATION
NOTE: Please read all instructions, specifications, and
precautions before installing and using your
Conserv 75S System.
NOTE: The Conserv 75S System may be installed hanging on
a wall, under a sink, or sitting on a counter.
NOTE: The Conserv 75S System must be installed vertically.
WARNING: Improper connection of the appliance-
grounding conductor can result in a risk
of electric shock. Check with a qualified
electrician or service representative if
you are in doubt whether the appliance is
properly grounded. Do not modify the plug
provided with the appliance; if it will not fit
in the outlet, have a proper outlet installed
by a qualified technician.
1Secure Manifold Wall Mount
The Conserv 75S System weighs approx. 53 lbs (24 kgs).
CAUTION: The Conserv 75S System should be mounted on
a stud or firm surface. The mounting bracket
will support the weight of the system and help
prevent strain on the water lines.
1. Select location where unit is to be mounted. The unit
must be mounted in a vertical position.
2. When mounting the Conserv 75S System on a wall, two
(2) screws are required to mount the unit. The two (2)
screws will be 14" (35.6 cm) apart and level. Screw the
two (2) screws into the wall. Leave a gap between the
screw head and the wall of 1/8". The backside of the unit
has two (2) slots that will fit over the screw heads and
slide down to lock (Figure 2).
3. Tighten both screws from the front with the cover
removed.
Mounting Screw Slots
Figure 2
2Piping/Tubing Connections
1. Refer to Figure 3 (cover removed) for a general
description of connection points.
2. Prepare the plumbing to accept the RO system.
NOTE: The blended water tubing/piping and associated
fittings connecting the RO blended water outlet to
the equipment being serviced should be food-grade
material that meets NSF®Standard 51, 61, or similar,
with a minimum pressure rating of 125 psi (8.6 bar,
0.86 MPa). The blended water may react with metal
piping, creating a corrosive condition. Plastic pipe
or reinforced beverage tubing are generally very
good material choices for RO water distribution
piping. The size of the blended water tubing/piping
should be 3/8" (9.5 mm) ID minimum. Distances of
25 feet (7.6 m) or greater from the RO system to the
equipment being serviced should be 1/2" (12.7 mm)
ID minimum.

10 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
3. Locate an appropriate point in the hard water plumbing
to tie in a new section of tubing/piping that can be routed
to the RO system. CLOSE the nearest shut-off valve
that is upstream from the tie-in point and relieve the
pressure in the line. Install the 3/8" (9.5 mm) tubing/
piping section and connect it to the INLET - Supply Water
fitting. See Figure 3.
4. Connect the appropriate size and type of tubing/piping
and associated fittings to the Everpure Conserv 75S
System outlet connection. Route the line(s) to the
equipment being serviced. CLOSE the inlet and outlet
valves on the RO system. Reapply pressure to the
plumbing by slowly OPENING the shut-off valve that was
closed in the previous step.
5. Connect a 1/4" (7.14 mm) OD tube to the reject connector
(labeled DRAIN) located in the lower left corner of the
unit. Route the other end of the tubing to a drain nearby,
securing it properly. Allow an air gap at the drain,
following any applicable local and national codes.
Electrical
On/Off
Blended Water
Blend
Adjustment Supply
Water
Waste Water
Power Cord
Connection
Figure 3
INSTALLING THE CARTRIDGES
The cartridges are identified on the label using the model
number.
Pentair®GRO-75EN RO Membrane Cartridge
Everpure 4FC5 Filter Cartridge
Everpure 4CC Mineral Cartridge
Install the cartridges in the correct locations. If the cartridges
are installed improperly, the system will not operate correctly.
The cover is removed for the installation of the cartridges
and flushing of the Conserv 75S System. Remove the two (2)
screws (Figure 4) and lift the cover off.
4FC5
4CC
GRO-75EN
Remove
Cover Screw
Remove
Cover Screw
Figure 4
3Install the Pentair GRO-75EN RO Membrane
Cartridge
The GRO-75EN RO Membrane Cartridge is installed in the
vertical position. There are three (3) quick-connect ports that
are labeled:
• Inlet -White
• Permeate (RO water ) - Blue
• Drain - Red
RO Inlet Connection
Drain
Connection
RO Water
Tubing
GRO-75EN
3
1
2
4
5
6
BlueRed
White
2
Figure 5
The numbers in Figure 5 refer to the Steps below.
CAUTION: DO NOT remove the quick-connect elbow fitting
from the red tubing. This assembly contains
a flow control that may become damaged if
removed. The efficiency of the Everpure Conserv
75S System may be affected.

11EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
1. Remove the GRO-75EN RO Membrane Cartridge from its
packaging and position it with the single white port at the
top.
NOTE: The top cover of the Conserv 75S System must be
removed.
2. Slide the cartridge into position through the back of the
top support.
3. Press the cartridge into the clip on the back plate. The
cartridge may be moved up or down to line up with the
tubing connections.
4. Insert RO inlet connection into the white quick-connect
port of the RO filter.
5. Insert drain water connection into the red quick-connect
port of the RO filter.
6. Insert RO water connection into the blue quick-connect
port of the RO filter.
4Install the Everpure 4FC5 Filter Cartridge
Locate the 4FC5 Filter Cartridge and inspect the o-rings.
They should be clean and lightly lubricated with silicone
grease.
1. Line up the tabs with the slots in the opening on the front
right side of the head assembly. See Figure 6 and Figure 7.
2. Insert the cartridge to full depth.
3. Rotate the cartridge 900to the right (clockwise) to lock it
in place.
Figure 6
Cartridge #1
4FC5
Cartridge #3
4CC
3
2
3
2
Figure 7
Install the Everpure 4CC Mineral Cartridge
Locate the 4CC Cartridge and inspect the o-rings. They
should be clean and lightly lubricated with silicone grease.
1. Line up the tabs with the slots in the opening on the left
front side of the head assembly. See Figure 6 and
Figure 7.
2. Insert the cartridge to full depth.
3. Rotate the cartridge 900to the right (clockwise) to lock it
in place.
Storage Tank
The storage tank will hold approximately 1 gallon (3.8 L) of
product water. The tank air pressure is preset to 24 psi (1.65
bar, 0.16 Mpa) when shipped via ground transportation. For
air shipments the precharge is completely removed. Check
the tank air pressure. Ensure that the tank has 24 psi (1.65
bar, 0.16 Mpa) of precharge upon installation. Add air if
needed. Tank pressure may be checked using an air pressure
gauge on the air valve at the bottom of the tank.
Locate the valve at the top of the tank and turn OFF until
instructed to open it.
PUTTING THE SYSTEM INTO OPERATION
CAUTION: Make certain the unit is firmly attached to wall
to prevent it from falling and possibly becoming
damaged.

12 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
NOTE: The Everpure®Conserv®75S System does not
produce a high volume of water on-demand as an
ordinary filter does. Water is produced at a slow,
drop-by-drop rate. The system requires about 30
minutes to fill the storage tank. As water is taken
from the tank, the system automatically starts the
cycle of replacing the water and then stops water
production when the tank is full.
There are several steps that must be followed to properly
place the Conserv 75S System into operation before the
supply water is turned ON.
5Flush the Everpure 4FC5 Filter Cartridge:
Electrical
On/Off
Blended
Water
Shut-off
Blending
Valve Incoming
Water
Shut-off
Tank Valve Flush Port for
4FC5 Cartridge
Figure 8
1. The incoming water shut-off valve should be in the
closed position.
2. The electrical switch must be in the off position
3. Locate the quick-connect tee fitting on the 4FC5 Filter
Cartridge head. Remove the plug by pressing in on the
collar and pulling out on the plug. Save the plug to be
reinstalled later.
4. Cut a length of 3/8" (9.5 mm ) long enough to connect
the flush port to a drain. Push one end of the tubing, 5/8"
(16 mm), into the quick-connect fitting. The other end is
secured at a drain.
5. The power to the Conserv 75S System must remain off.
Turn the incoming water shut-off to OPEN. Water will
flush through the 4FC5 Filter Cartridge to the drain.
6. Flush the cartridge for five (5) minutes. Then CLOSE the
incoming water shut-off valve.
7. Remove the temporary tubing from the flush port.
Reinsert the plug that was removed in Step 3.
6Flush the Pentair®GRO-75EN RO Membrane
Cartridge:
Electrical
On/Off
Blended
Water
Shut-off
Blending
Valve Incoming
Water
Shut-off
Tank Valve
Figure 9
1. Turn the incoming shut-off valve to the CLOSED position.
2. Remove tubing on the blended water shut-off valve and
connect the port with tubing to a drain.
3. Turn tank valve to the OPEN position.
4. Fully CLOSE the blend adjustment valve.
5. The electrical switch must be in the OFF position.
6. OPEN the blended water shut-off valve.
7. OPEN the incoming water valve.
8. Turn ON the power switch.
NOTE: The pump will run and waste water will flow to the
drain. Check the system for leaks. RO water will drip
out of the blended water valve.
9. For best system performance, flush for 24 hours. CLOSE
the outlet water shut-off valve.
7Final Flush
After the Pentair®GRO-75EN RO Membrane Cartridge has
been flushed the storage tank should be filled and emptied
five (5) times. When the blended water shut-off valve is closed
at the end of the GRO-75EN RO Membrane Cartridge flushing
process, the storage tank will fill. It will take approximately 30
minutes for the tank to fill.
1. When the storage tank is full, the pump will stop
running. OPEN the blended water outlet valve to empty
the storage tank.
2. When pressure drops in the storage tank, the pump will
turn on. Water exiting the tubing from the blended water
shut-off valve will slow to a drip. CLOSE the blended
water shut-off valve. The tank will refill with RO water.
When it is full the pump will turn off.
3. Repeat Steps 1 and 2 four (4) more times.

13EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
Flush the Everpure 4CC Filter Cartridge:
The 4CC Mineral Cartridge will be flushed when the storage
tank is flushed. No further flushing is required.
CAUTION: Visually check the entire system for leaks. If a
leak is present, see Troubleshooting.
NOTE: Initially, the water may appear cloudy. This is a result
of air trapped in the postfilter cartridge. It is not
harmful and will disappear in a matter of minutes.
It may take up to a week after installing a new
postfilter cartridge for the trapped air to dissipate.
Replace the Cover
Place the cover in position. Reuse the original screws to
secure it in place.
USING THE TDS METER TO TEST FOR TOTAL
DISSOLVED SOLIDS
After the system has been flushed, it is still necessary to
test and set the Total Dissolved Solids (TDS) to an acceptable
level. A TDS meter is included for testing purposes.
The included TDS Meter is designed for limited use. After
six (6) tests, the meter may not be accurate and should be
discarded.
Probe End
NOTE: For better accuracy and frequent testing for TDS, use
a standard pocket TDS meter.
8Set Blending Valve
The water exiting the Everpure Conserv 75S System should
have a TDS reading of 75 ppm.
1. Collect 1" to 2" of RO blended water in a clean glass
container.
2. Insert probe end of meter no more than 1" into water,
and depress blue cap. Do not submerge entire unit.
3. One (1) or two (2) lights will light immediately. Match
light(s) to chart to get approximate range of Total
Dissolved Solids (TDS). Release the blue cap, and write
down the TDS range.
NOTE: The blend adjustment valve should be closed at this
time. The TDS reading in Step 3 will be for unblended
RO water.
0-75 ppm (solid blue)
76-150 ppm (flashing blue)
100-250 ppm (flashing blue + solid green)
251-300 ppm (solid green)
301-400 ppm (flashing green)
401-500 ppm (solid green + flashing green)
501-600 ppm (flashing green + solid red)
601-750 ppm (flashing red)
751-900 ppm (solid red)
The Conserv 75S System includes a blend system that can
combine or "blend" water sources. OPENING the blend
adjustment valve will add untreated water with higher TDS to
the RO water.
To achieve the target TDS of 75 ppm, it is likely that the blend
valve will need to be opened.
The desired reading of 75 ppm is at the high end of the solid
blue range. To be certain the blended water is at or near 75
ppm, use the following procedure:
1. CLOSE the mixing valve. Allow RO water to run for two (2)
minutes.
2. OPEN the mixing valve 1/4 turn, and run blended water
for two (2) minutes. Discard this water.
3. Run blended water into a glass and collect 1" to 2" of
water.
4. Test this water for a TDS level. Based on the result, the
mixing valve will be opened or closed.
• If the meter showed a solid blue light, then the mixing
valve will be OPENED more.
• If the meter showed any other indicator, then the
mixing valve will be CLOSED more.
5. Adjust the mixing valve if needed and run blended water
for two (2) minutes. Discard this water.
6. Repeat Steps 3, 4 & 5 until the light indicators change
between solid blue and flashing blue. The blended water
TDS should now be at 75 ppm.
TESTING YOUR REVERSE OSMOSIS SYSTEM
Total Dissolved Solids (TDS) Test
Under NSF/ANSI Standard 58, it is highly recommended that
the blended water be tested at least every six (6) months to
verify that the system is performing satisfactorily.

14 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
WHEN TO CHANGE THE CARTRIDGES
The life of the cartridges depend on the water volume used
and the substances in the water. Normally, cartridges should
be changed at intervals of 12 months. Replace the cartridges
sooner if the water pressure at the application equipment
begins to drop noticeably or if you notice changes in the flow
of the blended water.
CHANGING THE CARTRIDGES
Replacement Cartridges:
Everpure 4FC5 Filter Cartridge - EV9693-21
Everpure 4CC Mineral Cartridge - EV9627-45
Pentair®GRO-75EN RO Membrane Cartridge - 4002575
The 4FC5 and 4CC Cartridges need to be changed when the
water pressure at the application equipment valve begins
to drop noticeably or if there are changes in the flow of the
blended water. All cartridges should be changed at the same
time.
NOTE: Only the replacement cartridges listed can be used
with this system. Failure to use the recommended
replacement cartridges will void your warranty.
1. Place a small pan or towel under the Everpure Conserv
75S System to catch any water that may drip. Turn OFF
incoming water.
2. OPEN the application equipment valve to drain the
storage tank and relieve pressure.
3. Remove the two (2) front cartridges by twisting each
cartridge a 1/4-turn to the left (counterclockwise). Then
pull down to release.
4. Remove the GRO-75EN RO Membrane Cartridge by
removing the tubing from all three (3) connections. Then
pull the cartridge out of the clip.
5. Replace the flow controller (Figure 10) in the red tubing
at the bottom of the cartridge. Remove the quick-connect
elbow from the red tubing to gain access to the flow
controller and the attached capillary tube.
6. Remove the old flow controller (Figure 10) with the tube
and discard.
7. Insert a new flow controller (Figure 10) with capillary
tube into the tubing. Replace the quick-connect elbow.
Flow
Controller
Figure 10
8. Insert the new GRO-75EN RO Membrane Cartridge into
position in the clip. Rotate the cartridge so the quick-
connect ports line up with the tubing.
9. Push the red and blue tubing into the quick-connect
ports at the bottom. Push the top tubing into the
connector at the top of the cartridge.
NOTE: The bottom of the GRO-75EN RO Membrane Cartridge
will be supported by the lower bracket.
10. Position the 4CC Cartridge under the left side head. Line
up the tabs on the cartridge with the slots in the head.
11. Push the new cartridge into the head until it can go no
further.
12. Twist the cartridge a 1/4-turn to the right (clockwise)
until it locks in place. Pull gently down to ensure the
cartridge is locked in place.
13. Repeat Steps 6, 7 and 8 for the 4FC5 Cartridge in the
right side head.
CAUTION: The 4CC Cartridge may contain carbon fines that
will be removed during the initial flushing. Follow
the proper flushing procedure to prevent damage
to the GRO-75EN RO Membrane Cartridge.
INITIAL FLUSHING OF CARTRIDGES
The installation of new cartridges requires that a preliminary
flushing of the cartridges be performed. This initial flushing
is required to prevent damage to the RO cartridge.
Refer to the Installation section, "Putting the System into
Operation" for the complete flushing procedure.

15EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
EVERPURE CONSERV 75S SANITIZING PROCEDURE 
CONTAMINATED WATER SUPPLY/BOIL ALERTS
When the water system has been contaminated or a boil
water advisory has been discontinued, the Conserv 75S
System must be sanitized. If a boil water advisory has just
been discontinued: Flush the water lines according to your
water supplier's instructions. OPEN the delivery faucet and
flush the system for about 10 minutes, then follow the filter
cartridge replacement instructions below.
1. Turn OFF the water supply and OPEN the application
valve to relieve pressure.
2. Remove the filter cartridges and discard in trash. Wash
hands with soap and warm water.
NOTE: If a drip pan is used, clean with dish soap and
warm water.
NOTE: The following steps require placing bleach into
the Conserv 75S System. Pentair®offers a hollow
cartridge, Everpure®2JT Flushing/Sanitizing
Cartridge (EV9608-10), that is designed for this
application. The following steps describe how to use
the Pentair Everpure 2JT Cartridge (EV9608-10).
CAUTION: DO NOT install the Pentair®GRO-75EN RO
Membrane Cartridge for the sanitization
procedure. The solution will severely damage the
membrane.
Sanitization Procedure with the Pentair Everpure 2JT
Cartridge (EV9608-10)
3. Grasp the tip of the outlet tower center, top of the
cartridge and pull out gently. The entire central plug with
the long tube attached will come out, leaving a hole.
Figure 11
4. Add about a teaspoon of laundry bleach (5.25% sodium
hypochlorite solution) to the empty flushing cartridge
through the hole in the top.
5. Lubricate o-ring with a high quality silicone lubricant.
Replace the central plug assembly and insert the flushing
cartridge into the right side head for the Everpure 4FC5
Cartridge.
NOTE: Do not use petroleum jelly to lubricate the o-rings. It
will degrade the o-rings.
2JT
Power
Switch
Port Plug
Open
Cartridge
with Sanitizer
Open Connect
to White
Tubing.
Open
Water Supply
Valve Closed
Connect to Blue
Tubing.
Figure 12
6. Install a plug into the port for the 4CC Filter Cartridge.
NOTE: A plug was included with the Conserv 75S System.
7. The tubing for the removed GRO-75EN Cartridge must
be connected together. Make a length of tubing with
angle quick-connectors. Use the length of tubing with
two right-angled quick-connectors to connect the white
tubing at the top to the blue tubing at the bottom. The red
tubing at the bottom is waste water and does not need to
be sanitized.
8. The tank valve should be open.
9. The application valve should be open.
10. The power switch should be on.
11. Slowly OPEN the water supply valve. Monitor the water
flowing out of the Conserv 75S System at the application
valve. When the smell of chlorine is present, CLOSE
the application valve. The storage tank will fill with
chlorinated water.
12. Wait for a period of at least 30 minutes to allow adequate
disinfection time.
13. Turn OFF the water supply valve.
14. OPEN the application valve. The storage tank will
drain out.
15. When the storage tank is emptied, CLOSE the application
valve and remove the 2JT Cartridge.
16. Install a new 4FC5 Cartridge in the first (right side) head.
17. OPEN the application valve and slowly OPEN the water
supply valve. Allow water to run for five (5) minutes. This
will flush carbon fines out of the new cartridge.

16 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
18. CLOSE the application valve allowing the tank to fill three
(3) to five (5) minutes.
19. Turn OFF the water supply valve.
20. OPEN the application valve to allow the tank to empty.
21. When the water flow has stopped, CLOSE the application
valve and OPEN the water supply valve to refill the tank
for three (3) to five (5) minutes.
22. Repeat Steps 18, 19 and 20 three (3) times.
23. Turn OFF the water supply valve and OPEN the
application valve to remove pressure.
24. Remove the plug from the left side port. Install a new
Everpure®4CC Filter Cartridge.
25. The power switch should be in the on position. OPEN the
water supply valve. Flush water out of the application
valve for five (5) minutes.
26. CLOSE the water supply valve and OPEN the application
valve to remove pressure.
27. Remove the tubing that connects the Pentair®GRO-75EN
RO Membrane Cartridge white (top) and blue (bottom)
system tubing.
28. Install a new GRO-75EN RO Cartridge. Connect the three
(3) tubes to the proper ports. The tubing and the ports
are color coded.
29. OPEN the water supply valve and the application valve.
30. With the power switch in the on position, allow the
application valve to drip for 12 hours.
31. CLOSE the application valve. The storage tank will fill.
Check for leaks during this time.
The Conserv 75S System is ready for operation.
TROUBLESHOOTING
NOTE: If leaks persist, or if there are other leaks in the
system, turn OFF water supply and call Technical
Support 800.942.1153 (US only)/630.307.3000.
Leaks Between Cartridge and Filter Housing
1. Turn OFF cold water supply to system. CLOSE tank valve.
OPEN the application valve to relieve water pressure.
2. Remove the cartridge, inspecting it for damage. Inspect
o-rings to make sure they are seated and clean.
3. Insert and twist the cartridge back into the filter housing.
4. Turn ON water supply. OPEN tank valve. CLOSE the
application valve after water begins to flow. If leaks
persist, call Technical Support.
Leak Between Tank Valve and Storage Tank
1. Turn OFF water supply to system. OPEN the application
valve to drain storage tank. Run for three (3) to five (5)
minutes until water drips.
2. Remove tubing from tank valve by pressing the collar around
the fitting while pulling the tubing with your
other hand.
3. Unscrew the tank valve from the storage tank.
4. Inspect the rubber seal inside the threaded area. Repair
or replace the valve as needed.
5. Thread the tank valve onto the top of the tank opening by
turning it clockwise until snug.
6. Wet the tubing and insert it 3/4" (1.9 cm) into the quick-
connect fitting.
7. Turn water supply ON and CLOSE the application valve.
8. Allow system to pressurize for several hours and check
for leaks.
9. Check for leaks after tank is fully pressurized [one (1) to
three (3) hours]. If leak persists, call Technical Support .
Leaks at Quick-Connect Fittings
CAUTION: The 1/4" red tubing connected to the bottom
drain connection of the RO cartridge has a flow
restrictor installed. The system will not operate
correctly if the restrictor is removed.
1. CLOSE tank valve, turn OFF cold water supply to the
system, and OPEN the application valve.
2. Press collar around the quick-connect fitting while
pulling the tubing with your other hand.
3. Tubing should be cut squarely. Internal and external
burrs should be removed. Place a mark on tubing 5/8"
(1.6 cm) from end on 1/4" tubing or 3/4" (1.0 cm) from
end on 3/8" tubing.
4. Wet the end and insert tubing until the mark is flush with
the quick-connect fitting.
5. OPEN the cold water supply until it comes to a stop.
OPEN the tank valve and CLOSE the application valve. If
leaks persist, call Technical Support.
No Flow or Slow Flow from the Brine (Reject) Line (Less
than 6 fl. oz. or 180 mL per minute)
NOTE: Before checking brine (or reject) flow, make sure the
unit is producing water by turning the valve on the
storage tank OFF and OPENING the application valve.
Water should drip from valve.
1. Replace the prefilter cartridge according to the
"Changing the Cartridge Instructions" and recheck the
brine (or reject) flow rate.
2. If the prefilter cartridge is not at fault, the brine (or
reject) flow controller could be clogged. Call
Technical Support.

17EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
High TDS in Product Water
1. If high TDS (Total Dissolved Solids) is detected in the
blended water, the RO cartridge may need to be replaced
or the reject flow control tubing may be clogged. If this is
a new installation, call Technical Support.
2. Otherwise, draw 1 gal (3.8 L) of water from the unit. After
10 minutes, run water from the blended water port and
test the water again.
3. Determine when you last changed the RO cartridge and
call Technical Support.
Limited Flow at the Application Equipment Valve
1. Turn OFF water supply to system.
2. OPEN the application valve to turn on flow.
3. Unscrew the black cap at the base of the storage tank to
expose air valve. Use a small air compressor or bicycle
pump to slowly add air to the storage tank. This will
force the water out of the storage tank through the valve.
Continue to slowly add air until water stops coming out
of the valve.
4. Turn OFF the application equipment valve.
5. Using an air pressure gauge, adjust the pressure in the
storage tank to 25 psi (1.72 bar, 0.17 MPa).
6. Replace the black cap.
7. OPEN the incoming water valve until it comes to a stop.
Let the system run one (1) to three (3) hours to fill the
tank. A full tank weighs approximately 29.4 lbs (10.2 kgs)
pounds. If performance has not improved, call
Technical Support.
Sudden Return of Taste and Odor
If shortly after complete servicing, noticeable taste and odors
return, contact Technical Support.
If you are experiencing a problem not listed in this manual,
shut OFF the water supply and CLOSE the tank valve. Call
Technical Support.
NOTES
Check for compliance with state and local laws and
regulations.
Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after
the system.
For installations in Massachusetts, the Commonwealth of
Massachusetts Plumbing Code 248 CMR shall be adhered
to. Consult your licensed plumber for installation of the
system. This system and its installation must comply with
state and local regulations.
Systems certified for cyst reduction may be used on
disinfected waters that may contain filterable cysts.
Substances that may be reduced are not necessarily in your
water. Filter must be maintained according to manufacturer’s
instructions, including replacement of filter cartridges.
The tested efficiency rating for this system is 37.63%.
Efficiency rating means the percentage of the influent water
to the system that is available to the user as reverse osmosis
treated water under operating conditions that approximate
typical daily usage.
The tested recovery rating is 53.94%. Recovery rating means
the percentage of the influent water to the membrane portion
of the system that is available to the user as reverse osmosis
treated water when the system is operated without a storage
tank or when the storage tank is bypassed.
Daily Production Rate: 50.51 gpd (191.20 Lpd)
This reverse osmosis system contains a replaceable
component critical to the efficiency of the system.
Replacement of the reverse osmosis component should
be with one of identical specifications, as defined by the
manufacturer, to ensure the same efficiency and contaminant
reduction performance.
REPLACEMENT PARTS
Contact your local Pentair®Everpure Dealer for filter
cartridges or system replacement parts.
Description Part Number
GRO-75EN RO Membrane Cartridge 4002575
4FC5 Filter Cartridge EV9693-21
4CC Mineral Cartridge EV9627-45
Storage Tank EV3146-55
TDS Meter EV3125-98
Plug, 3/8-inch Quick-Connect EV3144-87
Port Plug EV3108-76
Waste Water Restrictor EV3128-31
Conserv 75S Cartridge Kit EV9976-25
Conserv 75S Tested and Certified by NSF
International against NSF/ANSI 58 for
the reduction of claims specified on the
Performance Data Sheet and at NSF.org.
Water Treatment
Appliance - E359339

18 EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE

19EVERPURE®CONSERV®75S HIGH EFFICIENCY RO SYSTEM INSTALLATION AND OPERATION GUIDE
LIMITED WARRANTY
COMMERCIAL WATER TREATMENT EQUIPMENT
You have just purchased one of the finest water treatment units made. As an expression of confidence in this product, Pentair Filtration
Solutions, LLC (“PFS”) offers the following product warranty. This product is warranted against material defects in materials and
workmanship to the original end-user when installed in accordance with the PFS specifications. The warranty period commences on the
date of purchase and is administered as follows:
For a period of ONE YEAR Replaceable elements (i.e., filter & water treatment cartridges)*
For a period of ONE YEAR The entire system (excluding replaceable elements)
The unit must be used in operating conditions that conform to PFS’s recommended guidelines. This warranty will not apply if the unit
has been modified, repaired or altered by someone not authorized by PFS.
If a part described above is found to have a material defect in materials or workmanship within the specified warranty period, you
should notify Pentair® Everpure technical service at the phone number listed below. Any part found materially defective within the
terms of this warranty will be repaired or replaced (at PFS’s discretion) by your local dealer or Pentair Everpure technical service.
You pay only freight from our factory and local dealer charges. Any item repaired or replaced pursuant to this warranty will be
covered under the original warranty terms of the system.
PFS is not responsible for damage caused by accident, fire, flood, freezing, Act of God, misuse, misapplication, neglect, oxidizing agents
(such as chlorine, ozone, chloramines and other related components), alteration, installation or operation contrary to our printed
instructions, or by the use of accessories or components which do not meet PFS’s specifications. Refer to the specifications section in
the Installation and Operating manual for approved application parameters.
Our product performance specifications are furnished with each water treatment unit. TO THE EXTENT PERMITTED BY LAW,
EVERPURE DISCLAIMS ALL IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR PARTICULAR PURPOSE; TO THE EXTENT REQUIRED BY LAW, ANY SUCH IMPLIED WARRANTIES ARE LIMITED IN
DURATION TO THE PERIOD SPECIFIED ABOVE FOR THE ENTIRE WATER TREATMENT UNIT.
As a manufacturer, we do not know the characteristics of your water supply or the purpose for which you are purchasing this product.
The quality of water supplies may vary seasonally or over a period of time, and your water usage rate may vary as well. Water
characteristics can also differ considerably if this product is moved to a new location. For these reasons, we assume no liability for
the determination of the proper equipment necessary to meet your requirements, and we do not authorize others to assume such
obligations for us. Further, we assume no liability and extend no warranties, express or implied, for the use of this product with a non-
potable water source or a water source which does not meet the conditions for use described in the owner’s guide or performance data
sheet for this product.
OUR OBLIGATIONS UNDER THIS WARRANTY ARE LIMITED TO THE REPAIR OR REPLACEMENT (AT PFS’S DISCRETION) OF THE
FAILED PARTS OF THE WATER TREATMENT UNIT, AND WE ASSUME NO LIABILITY WHATSOEVER FOR DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, SPECIAL, GENERAL OR OTHER DAMAGES.
Some states do not allow the exclusion of implied warranties or limitations on how long an implied warranty lasts, so the above
limitation may not apply to you. Similarly, some states do not allow the exclusion of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary
from state to state.
*Warranty applies to material defects in materials & workmanship only.

Pentair trademarks and logos are owned by Pentair plc or its affiliates. Third party registered and unregistered trademarks and logos are property of their
respective owners. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.
Pentair is an equal opportunity employer.
© 2017 Pentair Filtration Solutions, LLC. All Rights Reserved.
WATER FILTRATION
EVERPURESHURFLO WORLD HEADQUARTERS, 1040 MUIRFIELD DRIVE, HANOVER PARK, IL 60133 USA • FOODSERVICE.PENTAIR.COM
800.942.1153 (US ONLY) • 630.307.3000 MAIN • 630.307.3030 FAX • [e-mail] EMAIL
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011.1300 576 190 TEL • 011.61.39.562.7237 FAX • [e-mail] EMAIL
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91.120.419.9444 TEL • 91.120.419.9400 FAX • [e-mail] EMAIL
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+32.(0).14.283.504 TEL • +32.(0).14.283.505 FAX • [e-mail] EMAIL
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81.(0)42.775.3011 TEL • 81.(0)42.775.3015 FAX • [e-mail] EMAIL
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EV3147-27 Rev D MR17