Ecosoft ROBUST 1000 Owner's manual

СИСТЕМ ОБРАТНОГО ОСМОСА
ECOSOFT ROBUST 1000, ROBUST 1500,
ROBUST PRO, ROBUST 3000
FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500,
ROBUST PRO, ROBUST 3000
ИНСТРУКЦИЯ ПО ПОДКЛЮЧЕНИЮ И ЭКСПЛУАТАЦИИ
INSTALLATION AND OPERATION GUIDELINES

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Carefully read this manual before installing the system.
Do not open plasc bag with reverse osmosis system components before you make sure it contains
all parts. Missing part claims will not be accepted if the package is broken.
The manufacturer reserves the right to amend design or components of the product, if such
amendment does not result in deterioraon of its quality and performance.

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
CONTENTS
1Application 4
2Specifications and components 7
2.1 Technical specifications 7
2.2 Feed water requirements 8
2.3 Reverse osmosis systems components 9
3 Installation diagrams 13
3.1 ECOSOFT RObust base model 13
3.2 ECOSOFT RObust with pressure tank 13
3.3 ECOSOFT RObust with pressure tank and ultraviolet unit 14
4 Installation steps 14
4.1 Installation conditions check 14
4.2 Installation 14
5 Post-installation 16
6 Operation 17
6.1 Average lifespan of systems components 18
6.2 Filters replacement 18
6.3 Membrane replacement 19
7 Sanitization 19
8 Troubleshooting 20
9Maintenance record 22
10 Health and environment safety information 24
11 Transportation and storage 24
12 Warranty 24
13 Authorized services in your area 26

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INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1. APPLICATION
Robust reverse osmosis systems are designed for water puricaon using reverse osmosis
membranes — special semipermeable membranes that allow purifying tap water from all harmful
impuries, including nitrates and viruses (see Figure 1 below).
RObust is a mulstage direct ow ltraon system, which operates according to the following
scheme:
• Feed cold water rst undergoes pre-ltraon (1st pre-lter in the Robust 3000 system or 1st and
2nd pre-lters in other systems) where it is stripped of suspended parcles (rust, sand, hemp
strands etc.).
• The pressure booster pump feeds water to the reverse osmosis membranes mounted in parallel
or in series. If the supply of feed water is cut o or the input pressure is lowered below 0.15-0.2
bar, a low-pressure switch is triggered, closes the inlet valve and turns o the pump. Even when
the puried water faucet is opened, the system will not start unl the supply of feed water is
restored with sucient pressure.
• Permeate (puried water) goes to puried water outlet or pressure tank outlet (if installed),
passing through the carbon post-lter, and the concentrate — through the ow restrictor is
discharged into the drain.
• RObustPro system is equipped special RObustPro replacement lter allows to get water with
a small content of magnesium and calcium, which enhance the extracon of coee avor and
aroma components.
High pressure switch installed before the post-lter reads pressure in permeate line and starts the
reverse osmosis system when the pressure drops (due to taking of some water from the pressure
tank or opening puried water faucet). When the system switches on, entry solenoid valve is
opened and booster pump is powered up, which allows feed water into the system. When puried
water faucet is closed, pressure starts to build up, closes high pressure switch turns o the system.
On the Robust system front panel there are two pressure gauges. One shows the water pressure
aer the pre-lters, and the second shows the pressure aer the pump in the membrane unit.
The panel also provides informaon on requirements, recommendaons for resolving possible
problems if requirement are not met.
Figure 1. Reverse osmosis process illustraon
Tap water under
pressure
Concentrate
for disposal
Membrane
Water
molecules
Molecules of smaller
size, pure water
Larger molecules

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INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
Figure 2. RObust 1000
Figure 3. RObust 1500
Water
inlet
1/4''
Inlet
Sediment
lter
Carbon
lter
Low
pressure
switch
Afterlter
pressure
gauge
solenoid
valve
Booster
pump
RO element
Operating
pressure
gauge
High
pressure
switch
Carbon
lter
Drain
outlet
1/4''
Tank
connection
1/4''
Permeate
outlet
1/4''
Flow
restrictor
Water Inlet
inlet
3/8''
Sediment
lter
Carbon
lter
Carbon
lter
Afterlter
pressure gauge
Low pressure
switch
solenoid
valve
Operating
pressure
gauge
Drain
outlet
1/4''
Tank
connection
3/8''
Permeate
outlet
3/8''
High pressure
switch
Check
valve
RO element
Flow
restrictor
Booster
pump
Flush
valve

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
Water
inlet
3/8''
Carbon
lter
Inlet solenoid
valve
Afterlter
pressure
gauge
Low pressure
switch
Booster
pump RO element
Operating
pressure
gauge
Flow
restrictors
Drain
outlet
1/4''
High
pressure
switch
Carbon
lter
Tank
connection
3/8''
Permeate
outlet
3/8''
Flush
valve
Figure 5. RObust 3000
Water Inlet
inlet
3/8''
Sediment
lter
Carbon
lter
Afterlter
pressure
gauge
Low pressure
switch
solenoid
valve
Check
valve
Operating
pressure
gauge
Flow
restrictor
Drain
outlet
1/4''
Tank
connection
3/8''
Permeate
outlet
3/8''
High pressure
switch
Carbon lter
RObustPro lter
Check
valve
RO element
Flow
restrictor
Booster
pump
Flush
valve
Figure 4. RObust PRO

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1 At feed water TDS of 1000 ppm and temperature of feed water of 25 °С, ±10%.
2 If pressure of water in your system does not meet requirement, install a pressure booster pump to raise it. If
water pressure exceeds the upper limit, install a pressure regulator before the RObust.
3 Using the RObust with feed water temperature between +20 and +30 °С produces a lower rejecon rate and
higher ow rate, which yields higher TDS of puried water. Using the system with feed water above +30 °С is
advised against.
2. SPECIFICATIONS AND COMPONENTS
2.1 TECHNICAL SPECIFICATIONS
Parameter
Value
RObust 1000 RObust 1500 RObust Pro RObust 3000
Puried water ow rate1, L/h 55–60 70–75 70–75 145–150
Feed water ow rate, L/h 110–125 140–150 140–150 290–310
Concentrate ow rate, L/h 55–65 70–75 70–75 145–160
Inlet water pressure, bar 2,0–5,02
Operang pressure, bar 5,0–7,0
Feed water temperature, °С +4…+303
Ambient air temperature, °С +5…+403
Connecon to water mains ½"
Overall dimensions,
H × W × D, mm 420x425x220 420х410х305 420х410х305 445x480x380
Weight, kg, max. 6 9 10 25
Electrical rang 230 V, 50 Hz
Power consumpon, W, max. 80 80 80 250
Ingress protecon rang IP 54

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INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
2.2 FEED WATER REQUIREMENTS
Parameter
Value1
RObust Pro ROBust 1000, ROBust 1500,
ROBust 3000
pH 6,5…8,5
TDS, ppm 250-500 < 1500
Total hardness 100–400 ppm CaCO3< 500 ppm CaCO3
Alkalinity 100–200 ppm CaCO3< 325 ppm CaCO3
Active chlorine, ppm < 0,5
Total iron, ppm < 0,3
Total manganese, ppm < 0,05
Chemical oxygen demand,
ppm O2
< 5
Total microbial count (TMC),
(CFU per 1 mL) < 100
E. coli (CFU per 100 mL) None
1 If feed water quality does not meet specied requirements, membrane and lter service life may decrease. If
aiming to purify raw water (well water/ground water etc.), it is recommended to carry out detailed water anal-
ysis. If any constuents exceed the above limitaons, it is advisable to install a special lter upstream of your
reverse osmosis system. Consult professional water treatment specialist for proper selecon of an appropriate
lter for your water.

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1) Assembled lter 2) Pre–lters and
post–lter
3) Reverse osmosis
membranes
2.3 REVERSE OSMOSIS SYSTEMS COMPONENTS
ROBUST 1000
7) Feed valve
PP5 GAC CTO
8) Set of tubes
and ngs
9) Service wrenches
4) Feed adapter 5) Drain saddle 6) Puried water faucet

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1) Assembled lter 2) Pre–lters and
post–lter
3) Reverse osmosis
membrane
ROBUST 1500
PP5 GAC CTO
8) Set of tubes
and ngs
9) Service wrench
5) Feed valve 5) Drain saddle 6) Puried water faucet

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1) Assembled lter 2) Pre–lters and
post–lter
3) Reverse osmosis
membrane
ROBUST PRO
PP5 GAC CTO RObust
Pro
8) Set of tubes
and ngs
9) Service wrench
5) Feed valve5) Drain saddle 6) Puried water faucet

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1) Assembled lter 2) Pre–lter and
post–lter
3) Reverse osmosis
membranes
ROBUST 3000
GAC GAC
8) Set of tubes
and ngs
7) Service wrenches
5) Feed valve5) Drain saddle

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
Puried water. Tube from pure water outlet to the puried water faucet.
Pressure tank. Not connected and mued.
Drain. Tube from the drain outlet to the drain saddle.
Inlet. Water supply tube from the water main.
Puried water. Tube from the pure water outlet to the puried water faucet.
Pressure tank. Tube from the tank outlet to the valve on the tank.
Drain. Tube from the drain outlet to the drain saddle.
Inlet. Water supply tube from the water main.
For simplicity of installaon, the input and output ports in all RObust systems are arranged in the
same order.
3. INSTALLATION DIAGRAMS
3.1. ECOSOFT ROBUST BASE MODEL
3.2. ECOSOFT ROBUST WITH PRESSURE TANK
Puried
water Drain Tank Inlet
Puried
water Drain Tank Inlet

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
Puried water. Tube from the pure water outlet to the ultraviolet unit.
Pressure tank. Tube from the tank outlet to the valve on the tank.
Drain. Tube from the drain outlet to the drain saddle.
Inlet. Water supply tube from the water main.
Ultraviolet unit*. The tube from the UV unit outlet to the puried water faucet.
*UV unit — oponal equipment, not included in the delivery.
The system must be connected by the service center specialist.
4. INSTALLATION STEPS
4.1. INSTALLATION CONDITIONS CHECK
Carefully read this manual before installing the reverse osmosis system.
Check that feed water meets requirements in p. 2.2.
If the water quality does not meet requirements, refer to a water treatment specialist company
for assistance selecng the appropriate water ltraon product for normalizing feed water quality.
Before proceeding with the installaon, ensure there is enough space for the assembled system. If
using pressure tank, provide room for it as well. In case of shortage of space, pressure tank can be
removed to the distance of connecng tube length.
Install the reverse osmosis system in accordance with below procedure.
3.3. ECOSOFT ROBUST WITH PRESSURE TANK AND ULTRAVIOLET UNIT
4.2. INSTALLATION
CAUTION! This product has been factory tested for leaks, and may contain residual moisture.
Before installaon of tubing, lters, and membranes, wash your hands with anbacterial soap.
Ensure that the installaon place is shielded from direct sunlight and removed from heang
appliances.

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INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
1Remove the reverse osmosis system from and the box check that all parts are inside the bag.
2Shut o water supply in place of installaon and open a water tap for 1 minute to relieve
pressure in the system. Then close the tap.
3Drain saddle ts most standard drain pipe. Install
the drain saddle on drain pipe as follows. Bore 5
mm hole in the drain pipe, apply rubber gasket with
scky base (included in the package). Install drain
saddle on top of the gasket so that push-t ng
in the saddle is located precisely above the hole in
drain pipe. Tighten nuts on drain saddle fasteners
with a wrench. Insert black tube in the push-t ng
in drain saddle. Connect the other end of black tube
with drain port of the RO system’s push-t port rack.
4* Put a few turns of PTFE tape on tank nipple thread.
Screw tank valve on the tank nipple. Turn the valve
fully o.
NOTE! Test air pressure in the empty tank bladder.
It should be 0.6–1.0 bar. If necessary, use air pump
with to inate the bladder. If pressure is too high
already, push on the valve stem’s core to relieve it.
5Install the faucet.
5.1 To install puried water faucet bore a 12,5 mm
diameter hole in desired locaon on sink or
countertop.
CAUTION! Metal shavings can damage your sink,
remove them carefully once you have nished
drilling. If the mounng surface is stone or ceramic,
use a carbide drill bit.
5.2 Mount the faucet over the hole on top of small
rubber washer, chrome plated base, and large
rubber washer. Fix the faucet rmly with plasc
washer, lock washer, and nut put on the faucet
shank underneath sink surface.
5.3 Put compression nut on free end of blue tube, then
put on ferrule and put insert inside the tube.
5.4 Push the end of blue tube inside the shank boom,
seat the ferrule against shank boom and screw
compression nut snugly on shank thread. The faucet
should now be rmly xed on top of sink, and blue
tube ghtly seated in compression ng at the
boom of faucet shank.
6Install replacement lters to the 1st and 2nd housings (le to right).
7Install the housings back on the system. Hand ghten only.
PTFE seal
tank
tank valve
small rubber gasket
chrome-plated cover
large rubber gasket
large plasc gasket
lock washer
nut
counter
1/4 ferrule
1/4 compression nut
blue tube
plasc insert

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
8Start rinsing pre–lters:
RObust 1000: disconnect the inlet tubes from the covers of the two rst membrane holders
and guide them into the bucket. Open system’s feed valve. Pass the required volume of
water unl there are no carbon nes in rinsewater. Install the free tube ends back in push-
t ngs and lock with locking clips.
RObust 1500, RObust Pro, RObust 3000: open a special rinse valve and pass the required
volume of water to the bucket unl there are no carbon nes in rinsewater.
9Install all membranes in membrane housings.
CAUTION! When installing reverse osmoc
membrane, do not take it out of the bag. Cut the
bag at the opposite end to membrane’s brine seal,
push the membrane inside membrane housing. Do
not touch membrane surface at any me.
10 Open feed valve and puried water faucet for 30 minutes to rinse membranes and other
parts of the system. Do not open tank valve at this me. Close the puried water faucet and
check all connecons for leaks.
CAUTION! Inspect the system for leaks every day for the rst week aer installaon.
Connue to check periodically onward. When leaving for an extended while, shut o
main valve to remove water supply to the system.
11 Insert the post-lter into housing and screw it. For RObustPro system insert special
RObustPro lter and post-lter into the housings and screw them.
Open the water supply and puried water faucet for 5-10 minutes to rinse the carbon lter.
12* Open tank valve and let the system ll it. Open puried water faucet and discard the rst
tank of puried water. When the tank is drained empty, close the puried water faucet and
let the system rell the tank. The water can be used now.
* Skip steps 4 and 12 if installing a tankless system.
A
A (1 : 1)
A
A (1 : 1)
* Skip if using a tankless system.
5. POST-INSTALLATION
1. Use calibrated TDS meter to test your tap water and puried water total dissolved solids.
2. Verify proper funconing of feed water solenoid. The system must switch o and stop discharging
concentrate when pressure tank is full* and puried water faucet is closed.
3. Inspect the system carefully for leaks.
4. Make a record of system installaon in maintenance log paragraph 9.
5. *Operaon with the pressure tank. When the tank is full, the pump is switched o and the drain stop.

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INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
6. OPERATION
RObust reverse osmosis system should be used for puricaon of cold water only.
Monitoring of the system is carried out based on the readings of pressure gauges and evaluaon
of producon.
Pressure aer pre–lters (le pressure gauge). If pressure aer pre–lters is less than 1 bar, this
may indicate low mains pressure or clogged pre–lters. Test pressure at the feed adapter site. If it
exceeds reading on the pressure gauge signicantly, replace pre–lters. Otherwise, low feed water
pressure is at fault and has to be sorted out. If the 1st pressure gauge displays over 5 bar aer the
system switches on, power down the system immediately, disconnect water supply, and install a
pressure regulator upstream of the system. Then, connue seng up the system. Recommended
feed water pressure is 3,5 bar.
Operang pressure (right pressure gauge). If operang pressure in the membrane is lower than
4 bar or falls to the value of the feed water pressure, this can be caused by the following:
• motor power supply fault (possibly due to broken/torn pump motor cord);
• air trapped inside pump’s chamber;
• jamming of the pump with solids such as carbon nes (if carbon lter was not properly rinse
before use).
Generally, if operang pressure reading on the 2nd pressure gauge falls below its normal range,
contact your dealer’s service. If pressure on 2nd pressure gauge is over 7 bar, this could be due
to pressure regulator failure or the RO system’s high pressure switch fault. Contact your dealer’s
service for help.
Performance. Reduced system ow rate is a sign of exhausted capacity of pre-lters. Unmely
replacement of them leads to contaminaon of membranes and complete loss of their producvity.
With a signicant drop in system performance, replacement of reverse osmosis membranes is
required.
In the event of long breaks in the system operaon (more than 2 weeks), disinfect the system as
described in paragraph 7 and shut o the water supply to the system.
Figure 6. Operang parameters of the system
Pressure

Change
cartridges
Install a pressure
regulator
Contact a�er
sale service
Contact a�er
sale service

pressure





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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
Filter type Service life*
RObust 1000 RObust 1500 RObust PRO RObust 3000
Pre–lters
and post-lters**
8 000 L but not
less than once
in 3 months.
Service life
depends on
feed water
quality and
intensity of
usage
8 000 L but not
less than once
in 3 months.
Service life
depends on
feed water
quality and
intensity of
usage
5 000 L but not
less than once
in 3 months.
Service life
depends on
feed water
quality and
intensity of
usage
15 000 L but
not less than
once in 3
months. Service
life depends
on feed water
quality and
intensity of
usage
Reverse osmosis
membranes
24 000 L but
not less than
once a year
40 000 L but
not less than
once a year
40 000 L but
not less than
once a year
80 000 L but
not less than
once a year
* Service life depends on quality of feed water.
** In Robust Pro reverse osmosis system all lters should be replace at the same me.
6.1. AVERAGE LIFESPAN OF SYSTEMS COMPONENTS
6.2. FILTERS REPLACEMENT
1Without disconnecng the system from the mains, turn o the water supply valve on the
system, turn the tank ball valve to the "Closed" posion.
For systems with a puried water faucet: open the tap on the sink, turn o the water supply
valve on the system, turn the tank ball valve to the "Closed" posion.
For systems without a faucet, open the tap for supplying puried water to the consumer.
2Wash your hands with anbacterial soap thoroughly.
3Aer water has stopped running from puried water faucet, unplug the RO system from the
mains and screw o the three lter housings. Take care as the bowls will be full of water.
4Remove spent lters.
5Wash the bowls thoroughly with non-aromac soap, and then rinse with water.
6Install new lters in bowls in the correct sequence from le to right: polypropylene, GAC,
carbon block (for systems RObust 1000, 1500, Pro), or two acvated carbon lters (for
RObust 3000). For the RObustPro system also insert a special RObustPro replacement lter.
7Start rinsing pre–lters:
RObust 1000: disconnect the inlet tubes from the covers of the two rst membrane holders
and guide them into the bucket. Open system’s feed valve. Pass the required volume of water
unl there are no carbon nes in rinsewater. Install the free tube ends back in push-t ngs
and lock with locking clips.
RObust 1500, RObust Pro, RObust 3000: open a special rinse valve and pass the required
volume of water to the bucket unl there are no carbon nes in rinsewater.

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This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
(Performed by water lter service specialist)
1Shut o feed water valve, close pressure tank valve if used.
2Open puried water faucet to relieve pressure in the system. Remove power from the system.
3Unplug tube from each membrane housing cap. Screw o the housing caps. Extract used
membranes from membrane housings and take note of their orientaon inside the housings.
4Install new RO membranes in housings observing proper orientaon of each.
CAUTION! Do not remove plasc bag when installing membrane. Make a cut in the
head end of bag and push the membrane out of the bag into the housing. Do not touch
membrane surface with your hands.
5Screw on membrane housing caps.
6Plug tubes back in the housings.
7Open feed valve. Restore power supply to the system.
8Let the system run for 30 minutes to ush out membrane preservave. Then, close puried
water faucet and open pressure tank valve if used.
6.3. MEMBRANE REPLACEMENT
7. SANITIZATION
Sanizaon of the reverse osmosis system is recommended aer it has been in operaon for an
extended period (over 6 months) or when the system is to be shut down for 3 weeks or longer. It is
also advisable to sanize the system when replacing lters. It is recommended to use tablets based
on acve chlorine for sanizaon.
Sanizaon is performed by water lter service specialist.
1Shut o feed water valve and tank valve if used.
2Remove and discard the pre-lter and post-lter replacement elements.
3Unscrew cap of RO element housing and remove RO element using needlenose pliers if
necessary. Put the membrane into a ght bag and store in refrigerator at +2...+5°C.
4Screw back pre-lter sumps, screw on membrane housing cap, and connect the tube from
the faucet directly to the union tee without post-lters.
5Put a chlorine tablet in the 1st sump. Fill the sump with water and screw on.
6Aer 15 minutes, open the drinking water faucet and feed valve.
7When water running from the faucet starts to smell like chlorine, close both the faucet and feed valve.
8Leave the system for 2-3 hours.
9Open clean water faucet and feed water valve and let water run unl bleach odor is gone.
10 Install all consumable parts back into the system. Open tank valve if used and feed water valve.
11 Drain water unl chlorine odor cannot be smelt.

20
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2017
INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS
ECOSOFT ROBUST 1000, ROBUST 1500, ROBUST PRO, ROBUST 3000
8. TROUBLESHOOTING
Problem Possible cause Method of handling
Fing leak Tube is not connected ghtly Remove and reinstall the tube
properly
Filter housing leak O-ring seal is missing or
misaligned
Check that the O-ring seal is
correctly seated in circular
groove inside bowl
Filter bowl is not ghtened Hand ghten the housing ll
snug
Puried water ow rate is
lower than normal
Low feed water pressure Check the inlet pressure
Clogged pre-lter Replace pre-lter
Clogged membranes Replace membranes
Bent exible tube Inspect the tube
The system keeps switching
on and o and will not stop
Surges in feed water pressure
just above low pressure
switch seng
Eliminate pressure surges.
Check supply water piping for
clogs and other obstrucons
and eliminate if present
The system will not switch on Feed valve or main shuto
valve is closed.
Low pressure switch failure
Open all valves on supply
water pipes. Check for clogs/
obstrucon.
Replace low pressure switch.
Verify proper electrical
contact
The system will not switch o High pressure switch failure Replace high pressure switch.
Verify proper electrical
contact
The system has switched o
but connues to send water
to drain
Solenoid valve failure Replace the solenoid valve