Waterite VECTAPURE RSX II User manual

VECTAPURE™ RSX
VERSION II
Advanced Reverse Osmosis System
OPERATOR’S MANUAL
FOR ALL VECTAPURE™ RSX II COMMERCIAL RO SYSTEMS
THIS MANUAL IS TO BE LEFT WITH THE OWNER OF THE EQUIPMENT FOR REFERENCE
PURPOSES AND TECHNICAL GUIDANCE. IT IS STRONGLY RECOMMENDED THAT
QUALIFIED DEALER SERVICE PERSONNEL BE CONTACTED IN THE EVENT OF AN
UNKNOWN INTERRUPTION OF SERVICE OR APPARENT PRODUCT MALFUNCTION. AN
ANNUAL PREVENTATIVE MAINTENANCE INSPECTION BY A WATER PROFESSIONAL
IS RECOMMENDED TO ENSURE TROUBLE-FREE AND CONTINUOUS OPERATION.
www.waterite.com
Waterite, Inc. ■ Winnipeg, MB Canada
R6

2
Congratulations!
You have purchased the nest commercial reverse osmosis water system
available. It will provide years of reliable service if properly installed,
operated and maintained. Please read this entire manual before attempting
installation and operation.
Section 1. Frequently Asked Questions
Before getting started, take the time to familiarize yourself with your new Waterite system by
reading some FAQs listed below. Call us or ask your dealer if you have any other questions
about your system’s operation.
Q: How does the Vectapure™ RSX II Reverse Osmosis System differ from an ordinary water
lter?
Ordinary water lters use a screen to separate only particles of dirt and sediment from the raw water
source. Reverse osmosis employs a semi-permeable membrane that removes not only particles
but also a very high percentage of dissolved contaminants, molecule by molecule, from your raw
water. Your system will deliver pure, rened water consistently to the designated storage tank or water
distribution equipment.
Q: What is the membrane and how does it work?
The membrane element consists of several thin layers or sheets of lm that are bonded together and
rolled in a spiral conguration around a plastic tube. As the raw water passes across the surface of
the membrane, only pure water molecules are allowed to pass through and collect in the tube, while all
other mineral and contaminant molecules are rejected and washed from the surface of the membrane
to the drain.
Q: What processes does the Vectapure™ RSX II RO system use?
Vectapure™ RSX II systems use two stages of treatment to produce high-purity product water. The
feed water rst ows through a 5-micron polypropylene lter used to reduce suspended particles. The
second stage is the reverse osmosis membrane that separates most dissolved contaminants from the
water molecules. These standard processes will probably be augmented with additional pre-treatment
processes, depending on your raw water source.
Q: Will reverse osmosis remove sodium chloride and other salts from the water?
Yes. Reverse osmosis was originally developed to make drinking water from seawater. Your system
is equipped with a membrane that will be very effective in reducing sodium levels normally found
in ground water or softened water. Vectapure™ RSX II systems are not designed for use on
seawater, or Brackish water with a TDS above 1500ppm
Q: Does reverse osmosis remove bacteria? Cryptosporidium? Viruses?
Reverse osmosis membranes will virtually eliminate most chemicals, bacteria, viruses and parasites
such as Cryptosporidium from the water. Where these conditions exist, pre-lters and o ther system
components located before the membrane will become contaminated from exposure to them. Cross
contamination of the entire system may occur when the membrane or lters are changed or disturbed.

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Q: What other contaminants does reverse osmosis remove?
The combined ltering and RO processes in your system will remove more than 98% of many
organic compounds, including THMs (chloroforms), DBCP, lindane, TCE (trichloroethylene), PCE
(tetrachloroethylene), carbon tetrachloride and chlorine. Very conservatively, a TFC membrane will
remove the following percentages of contaminants: Barium 97%, Potassium 92%, Bicarbonate 94%,
Radium 97%, Cadmium 97%, Selenium 97%, Calcium 97%, Silicates 96%, Chromium 92%, Silver
85%, Copper 97%, Sodium 92%, Detergents 97%, Strontium 97%, Fluoride 90%, Sulphates 97%, Lead
97%, PCBs 97%, Magnesium 97%, Insecticides 97%, Nickel 97%, Herbicides 97%, Nitrates 80%, Total
Dissolved Solids 97%.
Q: Where is the system installed?
Each application will require access to the feed water source, electrical power and a drain for the
wastewater to be routed to. The system should be protected from the elements and at all times
protected from freezing. If the system is used to provide water to a critical piece of equipment, you may
consider protection from power surges and lightning strikes.
Q: Can the Vectapure™ RSX II system be connected multiple appliances?
Yes. Many installations will involve providing water to multiple appliances or pieces of equipment
simultaneously. Make sure that the peak usage of water for the combined equipment does not exceed
the output of your RO system or its product water storage. See your dealer for advice and parts.
Q: What factors affect the quantity and the quality of the water produced?
1. Pressure: The greater the RO system pressure, the greater the water quantity that will be produced
by the membrane. Your Vectapure™ RSX II unit has been equipped with ultra- low energy
membrane(s) that are designed to operate at a minimum system pressure of 100 psi. (7.0 kg/
cm²) and a maximum of 150 psi (9.0 kg/cm²) Do not attempt to operate your system at pressures
exceeding 150 psi, as damage to the membrane or premature fouling may result.
2. Temperature: Production increases with temperature, standard ratings established at 25°C. Never
operate the system from the hot water line or with water exceeding 35°C, as this will damage the
membrane and internal components.
3. Membrane type: VectaPure ™ RSX II systems use premium quality TFC (Thin Film Composite)
membranes, specially chosen for general commercial applications. Please contact your dealer or
Waterite for information on special application or nanoltration membranes.
4. TDS: The higher the Total Dissolved Solids in the raw water, the lower the rate of output of product
water.
Q: How much water does the Vectapure™ RSX II system produce?
Vectapure ™ RSX II systems use a membrane nominally rated for 350 GPD. Actual output will be de-
pendent upon the factors explained above. In optimal applications (low feed water TDS, feed water =
25°C, you may expect 260-350 USG from each membrane to be available over 24 hours.
!
THIS REVERSE OSMOSIS WATER SYSTEM IS DESIGNED ONLY TO IMPROVE AESTHETIC
PROPERTIES AND IS NOT DESIGNED TO ACT AS A PRIMARY BARRIER TO WATERBORNE
MICROBIOLOGICAL OR TOXIC CHEMICAL CONTAMINATION. WHERE THESE CONDITIONS
MAY EXIST CONSULT A WATER PROFESSIONAL TO ENSURE SUFFICIENT RAW WATER PRE-
TREATMENT AND DISINFECTION.

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Q: Can the amount of total water produced be increased?
Once the system has been set for optimal operation, the overall water available for consumption over
a set period of time will be increased by increasing the storage capacity. This will increase the time
available for the unit to produce water in off-peak hours (instead of standing idle), and more storage
capacity to be available in peak hours when water usage may exceed production capacity, for short
intervals.
Q: What is the standard warranty with the Vectapure™ RSX II system?
Every Vectapure ™ RSX II system comes with a standard one-year limited warranty on all parts and
shop repair labour, freight excluded. See section 5 in this manual for details on components with
limited warranty coverage.
Q: What is the maintenance schedule for the Vectapure™ RSX II system?
A good rule of thumb is to replace the pre-lter every other month in commercial applications.
Consider changing them monthly when in continuous use or when used with untreated water sources.
Dependent upon feed water quality, your membrane(s) should have a life expectancy of 1-5 years.
More severe water conditions (iron, hardness) may shorten this signicantly; soft water sources may
allow a membrane life of up to 8 years. See Section 5.
Q: When should the membrane(s) be cleaned or changed?
If you notice gradually decreasing production from your system, differing taste to your drinking water or
water analyses indicate a rising TDS, it probably means that your membrane(s) are deteriorating and is
losing effectiveness. You may purchase a pocket or full-featured TDS meter from your dealer - this is
the best way to gauge your RO’s operation.
Where the RO is used as a pre-treatment for a process requiring water to exact standards, you should
adopt a regular ongoing sampling and testing procedure to ensure compliance, as product water will
vary with the quality of the RO feed water.
Section 2. Designing Your Installation
Your reverse osmosis system is designed to operate with feed water quality parameters that fall in a
specic range. The lifespan of the membranes and the ability of the system to produce water in the
required volume will depend largely on the feed water that is delivered to the system.
Step 1. Start with a Thorough Water Analysis
Every successful installation begins with a full analysis of the raw water source. Testing should
measure the following:
√Total Hardness: This measures the calcium and magnesium hardness in the water. Hardness in
excess of 6 grains/gallon (103 mg/l) must be pre-treated by softening. Failure to do so will cause
premature failure of the membrane through lime scaling.
√Total Iron: Iron is another common membrane foulant. Found in most water supplies, it’s
particularly prevalent in supplies drawn from wells. In its ferrous state (Fe+2), it’s soluble. However,
when it’s oxidized to its ferric state (Fe+3), it’s insoluble and forms a precipitate. Concentrations
in excess of .05 ppm must be pre-treated with an iron remover (concentrations > 2 ppm) or

5
combination softener1* (for iron concentrations < 2 ppm); otherwise premature membrane and
system equipment failure through iron deposit fouling will result.
√Manganese: Manganese is a commonly occurring mineral found in ground water. Manganese will
leave black, scaly deposits and will eventually foul membranes in concentrations greater than .05
ppm. Manganese must be treated with a manganese greensand lter, regenerated with potassium
permanganate.
√Hydrogen Sulphide: Most commonly, hydrogen sulphide is known for its “rotten egg” odour. In
addition to having a objectionable odour, it is highly corrosive and will damage plumbing and
equipment. At lower concentrations (< 1 ppm) it can be removed with a Paterson Iron Remover (air
injection). At levels exceeding 1 ppm it will need to be treated with a manganese greensand lter.
√Nitrates: The presence of nitrates in the water is usually an indicator for other problems with the
water source. Nitrates are a by-product of the decomposition of organic material that may include
sewage or run-off from septic systems. Surface runoff containing fertilizers will also be high in
nitrates. The source of the nitrates should be found and eliminated – feed water should be treated
with nitrate-selective ion exchange resins to reduce nitrates to < 5 mg/l.
√Tannins and Lignin: These are organic materials that are often contained in surface water and
shallow well water. Their origin is the natural decomposition of plant matter and tree barks, leaving
a brown colour ranging from a pale yellow to dark amber. Feed water tannins must be pre-treated
to levels < .5 mg/l to avoid membrane fouling. This is usually achieved through the use of organic
scavenging ion exchange resin (polystyrene or polyacrylic), regenerated with salt.
√Chlorine: Feed water should be free of chlorine (< .1 ppm), as TFC membranes are easily
damaged by chronic chlorine exposure. This is an important consideration when municipal water
is used as the feed water source. Pre-treatment by carbon ltration is very effective for chlorine
reduction – carbon eventually becomes exhausted and must be replaced to ensure continuous
ltration. If stabilized chlorine is present, size your carbon lter 2 to 3 times larger than for
unstabilized chlorine to ensure removal. Consider installing a post-carbon lter test port for ease of
sampling.
√Organic and Microbiological Activity: Raw water sources, particularly surface water, often
contain algae and naturally occurring bacteria. Ground water may contain sulphur or iron reducing
bacteria or may be contaminated with other more dangerous strains of coliforms or E. coli. These
must be treated to avoid contamination or fouling of the pre-treatment systems or membrane
element(s).
√pH: Most membrane manufacturers recommend a pH range between 3.0 and 11.0 for the
membrane element. We recommend that the system operate at between 5.5 and 9.5, to minimize
the effects of extremely acidic or scale-forming water at either ends of the range. Extremes in
pH will be harder on your system, either causing premature corrosion on metallic parts or scaling
internal components upstream from the membrane, and likely the membrane itself. Keep in
mind that reverse osmosis lowers the pH of the feed water, by up to 1.0, depending on the water
chemistry. This will be a consideration for the end use of product water and for the vessels and
plumbing system that will be used to store and control it.
1 * When softeners are used for iron reduction, be sure to t your softener with a resin bed cleaner
to assist in the ushing of iron deposits from the resin bed during backwashing and regeneration.

6
√Turbidity: This is the term to describe suspended particulate in the raw water. Turbidity is treated
by the sediment cartridges that your RO system has been equipped with. Reduction of turbidity
is necessary to avoid fouling your membrane and damaging your drive pump. Make sure that
your prelters are changed regularly and that quality Excelpure 5-micron cartridges are used as
replacements. The SDI (silt density index) on feed water reaching the membrane must be kept < 5
to assure long membrane life.
Step 2. Plan Your Pre-treatment Strategy
Pre-treating feed water can lengthen the life of membrane elements, improve the quality of the water
produced and reduce the amount of maintenance and cleaning a system requires.
The importance of feed water conditions is evident when you examine how crossow membranes work.
In simple terms, a crossow ltration system separates an inuent stream into two efuent streams -
the permeate and the concentrate. The permeate is the portion of the uid that has passed through
the semi-permeable membrane. The concentrate stream, on the other hand, contains constituents that
have been rejected by the membrane.
An inherent advantage of crossow ltration is its ability to continuously operate in a self-cleaning
mode. It’s self-cleaning because suspended solids and rejected solutes are constantly swept away from
the membrane surface. Membrane fouling occurs when materials from the feed stream collect on or
near the membrane surface and restrict water permeation. Fouling may occur as layers of deposition
on the surface of the membrane (cake fouling), a hardened layer on the membrane surface (scale),
particle insertion into the pore channel or entrance (pore blockage), or chemical attachment of particles
to the membrane (adsorption).
You will note that many of the prescribed treatments for various raw water conditions will be effective
in treating more than one problem. Where multiple pre-treatment requirements are necessary, consult
with a water treatment professional to design a pre-treatment system that meets the necessary needs
most economically.
Use the pre-treatment summary below to prescribe the necessary pre-treatment where your water and
analysis indicates parameters outside of the recommended range:

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Pre-Treatment Summary Chart
Recommended
Feed Water
Range
Potential
Effect Pre-Treatment Solution Waterite Models
TDS
< 1500 ppm
Reduced production rate
Increased salt passage
Replace water source
Higher Pressure Reverse
Osmosis System
RSL or
RSLHP
T. Hardness
< 6 grains/gal
(103 mg/l)
Scaling of membrane surface
Reduced production rate Automatic Softener
A Series
Fusion²
Magnum
RS Series
Total Iron
< .05 ppm
Reduced production rate
Fouling of membrane surface
Iron deposits in equipment
Iron Remover (> 5 ppm)
Softener (levels < 5 ppm)
Paterson I.R.
Premier
Magnum
Tannins
< .5 ppm
Reduced production rate
Fouling of membrane surface
Softener with organic
scavenger resin
A Series
Fusion²
RS series
Magnum
Chlorine
< .1 ppm
Permanent membrane damage
Increased salt passage Carbon Filter
CF Series
Excelclear
Carbon
pH
5.5 – 9.5
Internal corrosion
Lime scaling in equipment
Plumbing damage
Replace water source
Adjust pH
Call your
dealer
Organic or
Microbiological
Activity
0
Reduced production rate
Fouling of membrane surface
Sliming of pre-treatment
equipment, odour
UV Disinfection followed by
1 micron ltration
Well chlorination
UV Max
RE Series
Excelpure
WellPro
Manganese
<. 05 ppm Reduced production rate
Fouling of membrane surface
Manganese Greensand
Filter
MG Series
MT Series
Hydrogen
Sulphide
0
“Rotten egg” odour
Internal corrosion
Iron Remover (<1 ppm)
Manganese Greensand
Filter (> 1 ppm)
Paterson I.R.
MG Series
Turbidity
SDI < 5.0
Reduced production rate
Plugging of membrane
Rotary vane pump damage
Multimedia Filter
Pre-treatment cartridges
MF Series
Excelpure
!
TEST THAT THE PRE-TREATMENT SYSTEM IS DELIVERING RO FEED WATER TO NECESSARY
SPECIFICATIONS BEFORE PLUMBING THE RO SYSTEM ONLINE.

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Step 3. Plan Your Water System
1. Using a Pressure Storage Tank and Pressure Switch
Your RO system will produce permeate (product water) at a pressure capable of pressurizing a bladder
tank, though tank recovery time will be limited by the production rate of the membrane(s). Rates of
water production for Vectapure™ RSX II systems are, at maximum (feed water @<1000 TDS):
RSX II 350 0.25 USG/min. (0.94 litres/min.)
RSX II 700 0.50 USG/min. (1.88 litres/min.)
For many systems, this rate of recovery will be insufcient in periods of peak usage. It will be
necessary for you to provide product water storage in a non-pressurized tank from which you may re-
pressurize the water for delivery to your appliances or plumbing system.
!
ALWAYS ALLOW A NEW SOFTENER INSTALLED TO PRE-TREAT AN RO SYSTEM TO START ON
THE BACKWASH/REGENERATION/RINSE CYCLE. OPERATE THE SOFTENER OFF-LINE UNTIL
WATER RUNS CLEAR BEFORE USING IT TO PROVIDE RO FEED WATER. THIS PROCEDURE
ALSO APPLIES TO NEW RESIN BED INSTALLATIONS. COLOUR THROW FROM NEW RESIN
BEDS MAY DAMAGE OR FOUL RO MEMBRANES.
!
WATERITE DOES NOT RECOMMEND THE USE OF A GRANULAR/BLOCK CARBON CARTRIDGE
IN THE PRE-TREATMENT FILTER HOUSINGS SUPPLIED, FOR THE PRIMARY REDUCTION OF
CHLORINE. IT WILL REQUIRE REPLACEMENT TOO OFTEN, LIMIT FLOW RATES AND LIKELY
LEAD TO CHLORINE BREAKTHROUGH TO THE MEMBRANE ELEMENT. WE RECOMMEND
THAT THIS HOUSING BE RESERVED FOR 5-MICRON OR 1-MICRON SEDIMENT CARTRIDGES,
FOR THE REDUCTION OF SUSPENDED PARTICULATE.
!
IF THE SYSTEM IS CONNECTED DIRECTLY TO A PRESSURE TANK, MAKE SURE THAT A
CHECK VALVE IS INSTALLED ON THE PRODUCT WATER LINE BETWEEN THE MACHINE
OUTLET AND THE PLUMBING SYSTEM PRESSURE SWITCH, TO ELIMINATE BACKPRESSURE
ON THE MEMBRANE(S). FAILURE TO DO SO WILL CAUSE PERMANENT DAMAGE TO THE RO
MEMBRANE(S).
If a pressure tank and pressure switch is used, be sure that the pressure switch is capable of carrying
the full load amperage of the pump motor. For reference, the motor full load amperages are:
120VAC
RSX II 350 5.1 A
RSX II 700 7.5 A
Consult your electrician to determine the proper sized breaker for your installation. Other motor
voltages are available as a factory option. Consult with your dealer for availability and pricing.
The pressure switch will be used to turn off the RO unit at the cut-off pressure and turn it on at the cut-
in pressure, in the same way one is used to control a water well pump. Set the pressure switch to a
maximum shut-off pressure of 50 psi.

9
The pressure switch must be wired to break the current on the power line between the RO unit’s
switchbox and the RO unit’s low pressure switch. Do not break the current at the pump motor, as this
will cause the inlet solenoid to remain activated and open when the machine is shut down.
An optional Permeate pressure Switch package is available on all RSX II Units. Please order Part #
RSXPSO
2. Using a Atmospheric Pressure (non-pressurized) Storage Tank and Float Switch
Your Vectapure™ RSX II RO may be wired to a oat control shut-off switch that shuts the system down
when a non-pressurized storage tank is lled. A level oat switch package is available for your RSX II
system. Order part # LCS15MU
Make sure that the tank size is selected to provide adequate water storage for your peak demand
period. Keep in mind that atmospheric water storage vessels are subject to contamination by airborne
bacteria – they should include a lid, be sanitized before use and periodically disinfected. RO product
water will have no chlorine residual and will be subject to contamination at all stages in the plumbing
system. Consider UV disinfection as an inline option for all water being pumped from the storage tank
into the plumbing system. A overow bulkhead drain tting should always be installed in the tank and
connected to a oor drain to protect from a failed level switch.
If the inlet bulkhead tting to the non-pressurized tank is below the maximum water level in the tank,
make sure that a check valve is installed in the product water line between the RO unit’s outlet and
the tank inlet. This will ensure that backpressure from the tank will not damage the membrane(s). To
eliminate this problem, install the bulkhead tting above the level switch.
Consult your Waterite Commercial RO Systems Price List for information and availability on a wide
variety of water system components including storage tanks, repressurization pumps, bulkheads, tube,
pipe, pressure switches, ttings, UV disinfection systems and oat valves.
Section 3. Installation
Your system includes:
√ The main RO/lter assembly frame with one assembled pre-lter, booster pump, membrane
housing(s), ow controls, and pressure gauges.
√ One or two membrane(s) (in a sealed plastic bag) and one 5-micron polypropylene sediment
cartridge;
√ One Pre-lter housing wrench;
√ One Owner’s package including owner’s manual and warranty certicate.
Step 4. Selecting the System Location
The lter housing will need periodic maintenance - easy access must be maintained. Do not install in
a location with high humidity, direct sun or a direct source of heat. Typically, a commercial mechanical
room is ideal. Never expose the RO unit to freezing temperatures.
Use the threaded feet at the base of the RO stand to level the unit.
The unit will need to be installed in a location that has ready access to 120V power, the feed water line
and near a drain capable of handling the waste ow from the machine.

10
A Note on Fittings
Your RO system has been equipped with quality push on ttings throughout. Check that all ttings are
snug, as they may have loosened in transit.
Completing and securing a push-on connection is simple. First, the tubing should be cut square and
any burrs or rough edges removed. Insert the tube rmly and push until the tube end contacts the
stop. Gently tug the tube backwards to assure a secure connection. To disconnect, pull the tube while
pushing in the collet ring. Fittings may be reconnected over and over again, if necessary. See gure 2
below.
Step 5. Installing the Filter Cartridge and Membrane (s)
1. Remove the lter housing bowl by turning counter-clockwise with the housing wrench supplied.
Remove all protective wrapping from the 5-micron lter cartridge. Insert the 5-micron white
sediment lter in the housing and reassemble. The housing is seated with o-rings – DO NOT
OVERTIGHTEN – 1/4 turn or less after hand tight is usually sufcient. Purge any air out of the lter
bowl prior to starting the system by pushing the red button on top of the lter housing.
Skip (2.) below if the factory has pre-loaded your membrane elements.
Figure 2
Figure 1
Leveling Feet
Concentrate Valve
DLFC
Inlet Solenoid
Membrane Housing
On/Off Switch
Drive Pump
Pre-Filter Housing
TDS Monitor (Optional)
Low Pressure Switch
Waste & Permeate
Flow Meters (Optional)
Pressure Gauges

11
2. Remove the wrapping from the membrane element(s). Lightly lubricate the membrane brine seal
and all o-rings located in the membrane housing caps with a good quality, silicone o-ring lubricant
(do not use petroleum-based lubricants). Disconnect the connections on the membrane housing’s
top end cap. Remove the end cap from the membrane housing by loosening the band clamp
nuts and bolts. The membrane housing is mounted vertically on the system’s stand. See Figure
1. Insert the membrane element into the housing, so that the brine seal of the membrane will
seat at the inlet side of the membrane housing (this is indicated by the direction of ow label on
the housing). See Figure 3. Gently push and slowly twist until the membrane product adapter
seats snugly inside the housing cap still in place at the bottom of the housing. Re-install the
disassembled housing cap - be sure that o-rings do not roll out of their grooves, get pinched or cut.
Re-install the band clamp snugly and reconnect the connections to the cap.
3. To remove the membrane from the housing, remove the top housing end cap and gently pull the
membrane out of the housing body. You may need to lightly grip the membrane cage with needle-
nose pliers to free it from the housing, after extended use. With each disassembly, always check
the end cap o-rings and the membrane brine seal to make sure that they are in good condition
and are secure in their seating grooves. While the housing is disassembled, clean all components
thoroughly to remove any debris or scaling. When re-assembling, make sure that the membrane
element is installed with the brine seal facing in the same direction as it was previously. See
direction of ow label on each membrane housing. In order to monitor TDS reduction a TDS monitor
is available. Order Part # RSXTDS
Step 6. Install the Feed Water Supply Connection
1. Inspect the cold water supply line and the condition of the pipe. Ensure that the supply pipe is in
good overall condition and is capable of delivering the system’s necessary feed water ow rate.
See Section 8 for specied feed water ow rate requirements.
2. Turn the water supply line to your plumbing OFF.
3. Plumb a connection from the COLD water supply line, ensuring that the feed line is at least 1/2” in
diameter. Install a shut off valve on the connection, so that the RO system can by isolated from the
main water supply. Note that the inlet connection to your RO system is 3/8” push in tting. Push
the 3/8” tube into the tting following directions in the previous section. You may now turn the water
supply to the plumbing system ON. Check for leaks around the RO connection. Purge air from the
lter bowl by pressing the red button on top of the lter housing until no more air comes out. Correct
any leaks, if necessary.
Figure 3
Brine Seal
Membrane Cage
Product Adapter
Groove Clamp
Direction of Flow Label
Membrane Housing Body
End Cap O-Rings

12
4. Make sure the feed water source is a reliable one and will constantly deliver feed water between 40
psi and 80 psi maximum. Your RO system has been equipped with an low pressure shut-off, In the
event that the line pressure to your RO inlet falls below 20 psi., this switch will open breaking the
electrical connection. This will keep the drive pump from running dry and damage occurring to its
internal components. If your RSX II starts/stops frequently on low pressure, you may have to add a
pressurized bladder tank on the inlet line or increase the inlet pressure.
Step 7. Installing the Drain Line
1. A 3/8” poly tube should be used for the drain line. For systems equipped with the fast ush
option this will be sufcient. Attach the drain line to the 3/8”push in tting on top of the waste
ow meter. See Figure 1. Position the drain line over the drain and secure it in place. Do not
elevate the drain line over 10 feet above the unit. If connection to a sewer line is necessary, check
the local code or a plumbing professional for guidance and the required parts. Usually a trap with a
2” air gap will sufce.
2. DO NOT use a residential septic eld for receiving the RO waste water from Vectapure™ RSX II
systems unless the eld has a rated capacity in excess of the waste ow capacity. If used to 24-
hour capacity, these systems will produce between 360 to 930 USG (1360 to 3500 litres) per day of
wastewater and will waterlog smaller septic beds.
Step 8. Installing the Permeate Water Connection.
a. Plumbing to an Open Tank: This type of system generally is used when the peak ow rate
required is in excess of 30 gallons. You will require a holding tank, re-pressurization pump, check
valve, pressure switch, air bladder tank and a oat switch. Using 3/8” tubing, connect to the top
of the permeate ow meter. Connect the other end of the tubing to the tank. See Figure 4a for a
general schematic of this type of connection.
b. Connecting to an Air Bladder Tank: This type of system generally is used when the peak ow rate
required is less than 30 gallons. For this type of installation order the Permeate Shutoff Option when
purchasing your RSX II. Connect the tubing to the top of the Permeate Flow meter. Connect the
other end to the tee on the bladder tank. This system requires a check valve, pressure switch, and
bladder tank only and is detailed in Figure 4b
!
ALWAYS MAINTAIN OR INSTALL A 2” AIR GAP ON ALL DRAIN LINES TO PREVENT SEWAGE
BACK-SIPHONAGE.
Figure 4a Figure 4b

13
!
DO NOT START THE SYSTEM UNTIL THE NEXT STEP IS COMPLETE.
Step 9. Complete the Electrical Connection
VectaPure RSX II systems operate using a 120V 15A service and a grounded receptacle. Insure that
the power source is rated to the necessary amperage (see page 8) and that the connection meets the
local electrical code. See the electrical diagram on page 20.
GROUNDING INSTRUCTIONS – This appliance must be grounded. In the event of a malfunction or
breakdown, grounding will reduce the risk of electric shock by providing a path of least resistance for
electric current. 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.
WARNING – Improper connection of the appliance – grounding conductor can result in a risk of electric
shock. Check with a qualied 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 t the
outlet, have a proper outlet installed by a qualied technician.
Section 4: System Set-Up
Set-up of your RO system will be dependent upon the TDS of your feed water. Make sure that you
specify the TDS of your feed water at the time the unit is ordered. The system has been shipped
with a DLFC that will be intended for feed water of less than a TDS of 1000ppm. By changing the DLFC
the TDS range can be increased up to 2000ppm. See spare parts for range and part numbers when
ordering an alternate DLFC.
Make sure that you have the correct waste orice is tted to your system. This orice has been
selected to operate at the correct waste ow rate for your system without the need for a waste throttling
valve. For systems congured for <1000 TDS, the recovery rate will be a maximum of 60%. For
systems congured for >1000 TDS, the recovery rate will be a maximum of 35%.
Step 10: Starting Up and Flushing the System
1. Turn on the feed water valve to the system and check all connections for leaks. Do not proceed
further until any leaks are xed. Water will ow to the pre-treatment housings but will not pass the
inlet solenoid (see Figure 5) until the system has been started. The available line pressure should
now register on the line pressure gauge. Purge any air from the system by using the red button on
top of the pre-lter housing.
2. Open the recirculation valve to the fully open position.
3. The system pump must be initially primed and at any time that the system has been drained, prior
to start-up. THE PUMP MUST NOT BE RUN DRY OR DAMAGE WILL RESULT.
4. Once the pump is primed, turn the power switch ON. Let the system operate for about 5 -10
minutes with the valve fully open. The system is now ushing and clearing any dust or debris from
the lines. There should be minimal water production from the machine during this process. If the
unit does produce water, direct this ow to the drain for a period of 60 minutes

14
5. Next, begin to close the recirculation valve slowly until the operating pressure gauge registers 150
psi (10.3 bar). The system is designed to normally operate at 130 psi. At this pressure, the proper
waste/production ratio is established. DO NOT ALLOW THE SYSTEM TO OPERATE IN EXCESS
OF 150 PSI AS MEMBRANE AND SYSTEM DAMAGE MAY RESULT. You may wish to lock the
valve in the proper position by removing the handle to discourage tampering. Your system is now
set up to operate at its design settings.
!
YOUR MEMBRANES MAY HAVE BEEN SHIPPED WITH AN ANTI-BACTERIAL PRESERVATIVE.
OPERATE THE SYSTEM FOR 1 HOUR AT DESIGN SETTINGS BEFORE BRINGING THE SYSTEM
ONLINE TO ASSURE MEMBRANE HAS BEEN COMPLETELY FLUSHED. DO NOT USE WATER
PRODUCED DURING THIS RUN-IN PERIOD.
A Note on Recovery Rates
Your Vectapure ™ RSX II is designed to operate at a recovery rate (percentage of product water to
total water used) at maximum of 60% for feed water of <1000 TDS and 35-40% for feed water with
TDS ranging from 1000 to 2000. DO NOT ATTEMPT TO OPERATE THE SYSTEM AT HIGHER
RECOVERY RATES, AS THIS WILL CAUSE PREMATURE MEMBRANE FAILURE OR INTERNAL
SCALING AND EQUIPMENT FAILURE.
You may wish to operate your system at lower recovery rates where your dealer has identied water
conditions that may stress your membrane or where recommended pre-treatment feed water conditions
are not met. You may do so, though this must be accomplished by a combination of increasing the ow
of concentrate to waste and reducing the recirculation valve ow. This, done in balance, will maintain
the overall system pressure at previously stated normal operating pressures.
Low Pressure Shut Off Switch
Inlet Solenoid
Recirculation Valve
Figure 5

15
Where your system is equipped with ow meters, simply open the concentrate valve to the desired ow
rate and close the recirculation valve until the pressure registers normal operating pressure. Using the
formula:
% Recovery Rate = Flow rate of Permeate (Product Flow)
Flow rate of Permeate + Flow rate of Waste
Adjust the valves until the appropriate balance is met. Once the new balance has been established
at normal operating pressure, you may wish to lock the valves in position by removing the handles by
loosening the setscrews located on the valve handle.
Section 5: System Maintenance
Changing Pre-lter Cartridges
The pre-lter cartridge should be changed, as a rule of thumb, every 2 months, monthly in heavy use
applications. It is critical that this be done to ensure that pre-treatment cartridge allow necessary ow
and that suspended particulate is removed from the feed water.
To change the cartridge, turn off the system’s power and as a safety precaution, close the water supply
to the unit. Repeat Step 5(1) from the installation instructions above. Thoroughly ush and clean the
lter housings while they are disassembled. Always use Waterite factory cartridges as replacements.
Monitoring your System Performance
Your system will be operating at its peak performance after about 24 hours of operation. You should
develop a daily log to track line pressure, system pressure, feed water TDS, permeate TDS, permeate
ow rate and waste ow rate. This will allow you to see any developing performance trends or alert you
to system changes that will require you to intervene. It will also be helpful for your dealer or Waterite
technical personnel to have this information available to help troubleshoot your system, should it
become necessary. The table provided in the last few pages of this manual (Section 9) will help you
get started.
Fast Flushing your Vectapure™ RSX
You consider ordering your system with the automatic auto ush option, which can be set for
a periodic fast ush automatically. (Waterite P/N RSXAFSH) This option should be considered for
any application with over 4 grains/gallon of hardness, any measurable iron in the raw water source or
raw water TDS that exceeds 500ppm. This will substantially increase the life of the membrane element.
Cleaning your Membrane Element
As your membrane begins to age, it will gradually lose some output performance. This is normal and
may result in an overall permeate ow loss of 5% after about 1 year. Your membrane(s) may eventually
begin to lose production due to fouling or scaling in its interior. Symptoms of this may be continuously
falling production rates or elevated TDS levels in the product water. Do not attempt to operate the
system above specied pressures to compensate for output loss.
Total Dissolved Solids may be measured by a professional or by use of a simple hand-held TDS
monitor. These are available from your dealer.
Pocket TDS Meter
Waterite P/N HMTDS3

16
The membrane element life will range from 1 to 5 years, depending on the quality of the raw water.
See Step 5(2) for membrane removal and installation instructions.
If you suspect your membrane element requires cleaning or replacement, contact Waterite or your
dealer. Do not attempt to clean the element yourself, as it requires specialized chemicals, procedures
and equipment. If you remove your membrane from the housing, make sure that you keep it wet,
preferably in a sealed plastic sleeve.
It is a good idea to always keep an extra membrane on hand to avoid system downtime when
replacement is necessary. Never allow a membrane to dry out (if wet variety) or freeze while in
storage.
A Word on your Warranty
Keep your bill of sale and your warranty certicate, included in this kit. This is needed to claim any
parts or repair service during the warranty period. Read the document completely for warranty claim
instructions.
Your Vectapure™ RSX II system comes with a limited one year warranty covering materials
and workmanship for one year from date of installation, subject to user’s compliance with these
maintenance and operating instructions. Membranes are excluded by the warranty and the seller’s
responsibility is limited to any warranty carried by the manufacturer. It is the purchaser’s responsibility
to immediately notify Waterite in the event that defects are detected. Seller shall not be liable for
any special, incidental or consequential damages and will at its option repair or replace any defective
components. Warranty excludes o-rings, membranes, pre-lter cartridges, freight charges, labour to
remove or re-install equipment, use with feed water in excess of 2000 TDS, use of feed water that does
not meet recommended conditions and with system alterations made, without a written approval from
Waterite.

17
Section 6: Trouble Shooting Guide
Problem Possible Cause Solution
Low or Declining
Permeate Production
Water supply valve closed Open valve
Crimped poly product line Repair or replace tube
Raw water TDS too high Consult dealer – may need pre-
treatment
Pre-treatment cartridges plugged Replace cartridges
Membranes fouled Clean or replace membrane
Fast ush system
Membrane installed upside down Install element correctly
Low operating pressure See “Low System Pressure”
Brine seal rolled out of groove Re-install membrane using lubricant.
Check brine seal for damage.
Feed water content has changed Review pre-treatment
Leaking Joints
Fittings not seated Disconnect tting and re-seat tube
Filter housing leaking Tighten with housing wrench.
Inspect o-rings for cuts or crimps.
Low System
Pressure
Clogged pre-lter or fouled pre-
treatment Replace pre-lter cartridges.
Low feed water pressure Check feed water source for
restrictions
Inlet solenoid closed Check solenoid circuit. Replace if
necessary
Drive pump malfunctioning Call dealer
Malfunctioning pressure gauge Replace gauge
DLFC missing or damaged Check DLFC and replace if
damaged
High System
Pressure
Plugged or restricted recirculation
valves Clean or replace valves
Crimped product/waste line Repair or replace tube
Malfunctioning pressure gauge Replace gauge
Fouled membrane Replace membrane
Permeate TDS Rising
Scaled, perforated or fouled
membrane(s)
Clean or replace membranes
Fast ush membrane
Pre-treatment system failure Check feed water quality
O-rings on product adapters cut or
damaged Check and replace damaged o-rings

18
Part Description Part Number
Excelpure 10” BB 5 Micron PP Spun Cartridge PP10B05
Excelpure 10” BB 1 Micron PP Spun Cartridge PP10B01
3/8” Inlet Solenoid ROSD11038
Low Pressure Cut-off Switch FRG22
1½” Pressure Gauge, 0-200 PSI AG06
Pre-lter Housing Wrench HAN13W
Recirculation Valve, 3/8”, SS IVISBFF6
Membrane Product Adapter O-ring N70209
Membrane Housing End Cap O-ring N70328
Pre-Filter Housing O-ring RKE0013HLB
Black Max 2521 Membrane, TFC, LP BME2521SL
Drive Pump, 100 GPH APR3BZ
Drive Pump, 140 GPH APR4BZ
Drive Motor, 1/3 HP, 115VAC 4FRG42
Drive Motor, 1/2 HP, 115VAC 4FRG44
DLFC-3/8” 0.13 GPM Yellow 5865011
DLFC-3/8” 0.26 GPM Pink 5865031
DLFC-3/8” 0.50 GPM Black 5865051
DLFC-3/8” 0.79 GPM Purple 5865071
DLFC-3/8” 0.92 GPM Blue 5865081
Section 7: Common Replacement Parts
You can order replacement parts at www.waterite.com

19
Section 8: Feed Water Requirements
RSX II 350: 2.0 USGPM minimum includes 20% safety factor
RSX II 700: 3.0USGPM minimum on 1000 TDS feed water.
Feed water must be available at a minimum of 40 psi and a maximum of 80 psi at the specied ow
rate.
Section 9: Electrical Wiring Diagram

20
Section 10: Vectapure RSX II Performance Log
Date Line
Pressure
System
Pressure
Permeate
TDS
Feed Water
TDS
Pre-Filter
Change
Fast
Flush
Permeate
Flow Meter
Waste
Flow Meter