Waterite Vectapure RSXII LITE User manual

0
RSXII
Advanced Reverse Osmosis System
OWNER’S MANUAL
for VectapureTM RSXII Lite model RSX800LB
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
R4

1
Congratulations!
You have purchased the finest light commercial reverse osmosis water
system available. It will provide you 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™ RSXII Lite Reverse Osmosis System differ from an ordinary
water filter?
Ordinary water filters 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, bottled water quality water to a faucet or any other
designated receptacle.
Q: What is the membrane and how does it work?
The membrane element(s) consists of several thin layers or sheets of film that are bonded together
and rolled in a spiral configuration 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™ RSXII Lite RO system use?
Vectapure™ RSXII Lite systems use two stages of treatment to produce high-purity product water.
The feed water first flows through a 5-micron rated filter used to reduce suspended particles and
remove chlorine residuals. The second stage is the reverse osmosis membrane(s) that separates
most dissolved contaminants from the water molecules.
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™ RSXII Lite systems are not designed for
use on seawater.
Q: What types of water can be treated with the Vectapure™ RSXII Lite RO system?
The VectapureTM RSXII Lite system can be used with properly pre-treated ground water, surface
water and de-chlorinated municipal waters not containing a total dissolved solids content that
exceeds 1000 ppm.
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-filters and
other 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 filters are
changed or disturbed.

2
!
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.
Q: What other contaminants does reverse osmosis remove?
The combined filtering 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, 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.
Q: Can the Vectapure™ RSXII Lite system be connected multiple appliances?
Yes. Many installations will involve providing water to multiple appliances simultaneously, such as
coffee makers, juice dispensers and icemakers. 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™ RSXII Lite unit has been equipped with an
ultra-low energy membrane(s) that are designed to operate at a maximum system pressure
of 100 psi. (10.5 kg/cm²). Do not attempt to operate your system at pressures exceeding
this maximum, 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 40°C, as this will
damage the membrane and internal components.
3. Membrane type: Vectapure™ RSXII Lite systems use premium quality TFC (Thin Film
Composite) membranes, specially chosen for general, light commercial applications.
Please contact your dealer or Waterite for information on special application or
nanofiltration 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™ RSXII Lite system produce?
All Vectapure™ RSXII Lite systems use membranes nominally rated for 400GPD each, +- 15%.
Actual output will be dependent upon the factors explained above. In optimal applications (low
feed water TDS, feed water =25°C, you may expect 320-400 gallons from each membrane to be
available over 24 hours. See temperature correction chart located at the end of this manual.

3
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™ RSXII Lite system?
Every Vectapure™ RSXII Lite system comes with a standard one-year limited warranty on all parts
and repair labour. A detailed warranty card is included with the unit. See section 5 in this manual
for details on components with limited warranty coverage.
Q: What is the maintenance schedule for the Vectapure™ RSXII Lite system?
A good rule of thumb is to replace all pre-filters bi-monthly in commercial applications. Consider
changing them monthly when in continuous use or when used with surface 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 significantly; 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 is
deteriorating and is losing its effectiveness.
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 specific 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 > 6 ppm) or combination softener*(for iron concentrations < 6
ppm); otherwise premature membrane and system equipment failure through iron
deposit fouling will result.
*When softeners are used for iron reduction, be sure to fit your softener with a resin bed cleaner to assist in
the flushing of iron deposits from the resin bed during backwashing and regeneration.

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Manganese: Manganese is a commonly occurring mineral found in ground water. Mn
will leave black, scaly deposits and will eventually foul membranes in concentrations
greater than .05 ppm. Manganese must be treated with a manganese greensand filter,
regenerated with potassium permanganate.
Hydrogen Sulphide: H2S 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 filter.
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 filtration is
very effective for chlorine reduction – carbon eventually becomes exhausted and must
be replaced to ensure continuous filtration. If stabilized chlorine is present, size your
carbon filter 2 to 3 times larger than for unstabilized chlorine to ensure removal.
Consider installing a post-carbon filter 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.
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-filters are changed regularly and that quality
Excelpure 5-micron or 1-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

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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 crossflow membranes
work. In simple terms, a crossflow filtration system separates an influent stream into two effluent
streams - the permeate and the concentrate. The permeate is the portion of the fluid 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 crossflow filtration 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 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
analysis indicates parameters outside of the recommended range:
!
TEST THAT THE PRE-TREATMENT SYSTEM IS DELIVERING RO FEED WATER TO
NECESSARY SPECIFICATIONS BEFORE PLUMBING THE RO SYSTEM ONLINE.
!
ALWAYS ALLOW A NEW SOFTENER INSTALLED TO PRE-TREAT AN RO SYSTEM TO
START ON THE BACKWASH/REGENERATION/RINSE CYCLE. OPERATE THE SOFTENER
OFFLINE 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

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Pre-Treatment Summary Chart
Recommended
Feed Water
Range
Potential
Effect Pre-Treatment Solution Waterite Models
TDS
< 2000 ppm
Reduced production rate
Increased salt passage Replace water source n/a
T. Hardness
< 6 grains/gal
(103 mg/l)
Scaling of membrane surface
Reduced production rate Automatic Softener
A Series
Fusion²
Sanitizer
RS Series
Total Iron
< .05 ppm
Reduced production rate
Fouling of membrane surface
Iron deposits in equipment
Iron Remover
Softener (levels less than
5 ppm)
Paterson
I.R.
Premier
Sanitizer
Tannins
< .5 ppm
Reduced production rate
Fouling of membrane surface
Softener with organic
scavenger resin
A Series
Fusion²
RS series
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 filtration
Well chlorination
UV Max
RE Series
UV
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

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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™ RSXII Lite systems are, at maximum (feed water
@<1000 TDS), +-10%:
RSX800LB 0.55 USG/min. (2.0 litres/min.)
For many systems, this rate of recovery will be insufficient 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.
2. Using an Atmospheric Pressure (non-pressurized) Storage Tank and Float Switch
Your Vectapure™ RSXII Lite RO may be controlled by a float control shut-off switch that shuts the
system down when a non-pressurized storage tank is filled. Or an electrically actuated valve will be
required to shut off the system. It can be attached to either the raw water feed or the permeate
line. (Consult your Waterite dealer for recommendations).
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 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.
If the inlet bulkhead fitting 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).
Ensure that any tank float switch connected to a pump, is designed to carry the full load amperage
of the re-pressurization pumps drive motor.
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, fittings, UV disinfection systems and float valves.
Section 3. Installation
Your system includes:
The main RO/filter unit assembly stand
oPre-Filter Housing
oAuto Shut-Off Valve
oDual Channel TDS monitor
oPermeate and Waste Flow meters
oInline Concentrate Flow Control (DLFC)
oTwo Encapsulated 400 gpd membranes
oPre/Post Filter Pressure Gauges
5 micron 10” x 4” Spun Polypropylene Sediment Filter Cartridge
One Filter Housing Wrench;
One Owner’s Package (including owner’s manual and warranty certificate).
3m ¼” Black LDPE Tubing (Drain)
8m 3/8” Clear Poly LDPE Tubing (Feed & Permeate)

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Step 4. Selecting the System Location
1. The filter housings 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.
2. Use the threaded, rubber feet at the base of the RO stand to level the unit.
3. The unit will need to be installed in a location that has ready access to your feed water line
and a drain capable of handling the waste flow from the machine.
Pre/Post Filter
Pressure Gauges
TDS Monitor
Reject flow meter
Permeate flow meter
1/4” Drain Connection membrane housings
Auto Shut Off Valve
3/8” Feed Water inlet
3/8” Permeate Outlet
Housing (5-micron
Pre-Filter)
Levelling feet
Figure 1.
A Note on Fittings
Your RO system has been equipped with quality push on fittings throughout. Check that all fittings
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 firmly 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 figure 2. below.
Figure 2.

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!
ALWAYS MAINTAIN OR INSTALL A 2” AIR GAP ON ALL DRAIN LINES TO
PREVENT SEWAGE BACK SIPHONAGE.
Step 5. Connecting Raw Water Feed Line
1. Using the 3/8” clear tubing (supplied), connect the raw
water feed line to the right side of the auto shut-off valve.
Connect the other end of the tubing to the feed using a
compression or push-on style push on fitting. (Not supplied)
Step 6. Installing the Drain Line
1. A 1/4” poly tube should be used for the drain line. (Black
tubing-supplied) Attach the drain line to the fitting on the
upper back of the reject flow meter. Position the drain line
over the drain and secure it in place. Do not elevate the
drain line over 10 feet from the floor. 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 suffice.
2. It is not recommended that a residential septic field be used for receiving the RO waste
from Vectapure™ RSXII Lite systems. If used to capacity, these systems (depending on
the model) will produce 600 to 800 USG (2,270 to 3030 litres) per day and will waterlog
most home septic beds.
Step 6. Installing the Permeate Line
1. Connect one end of the clear 3/8” tubing (supplied) to the top of the Auto shut off valve
2. Connect the other end to the storage tank. (see step #3.1or
#3.2)

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Step 7. Installing the Cartridges and Membrane (s)
1. Remove housing #1 by turning clockwise with the housing wrench supplied. Remove all
protective wrapping from the 5-micron filter cartridge. Insert the 5-micron filter in the
housing and reassemble. The housings are seated with o-rings – DO NOT
OVERTIGHTEN – 1/4 turn after hand tight is usually sufficient.
2. The membranes are pre-installed in sealed units. If they need replacing after a time, turn
the water supply off. Remove the push connect fittings from all three ports on the
encapsulated membrane. Remove the membrane from the clamps and replace with your
new membrane. Re-attach the push on fittings to the correct ports.
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 waste control orifice that will be intended for feed water of less than TDS of 1000 or
in the range of 1000 to 2000. Orifice colour codes are as follows:
< 500 TDS Black
501-1000 TDS Lilac
Make sure that you have the correct orifice plate fitted to your system. This orifice has been
selected to operate at the correct waste flow rate for your system. For systems configured for <500
TDS feed water, the recovery rate will be a maximum of 50%. For systems configured for 501-
1000 TDS, the recovery rate will be a maximum of 33%. The orifice plates can be found inside the
DLFC on the back of the waste flow meter.
Step 9: Starting Up and Flushing the System
(Only if a carbon filter is used in the pre-filtration housing, not required if the supplied
sediment cartridge is used)
1. Disconnect the line that feeds the RO membranes at the tee. (Figure #4) Turn the feed
water valve to the system on. Water will flow to the pre-treatment housing and flush loose
particles from the carbon filter. Use a bucket to catch the water or connect a longer line to
the drain. This “flushing” will be required every time a carbon filter is changed. After 5
minutes of continuous flushing, shut off the feed line and reconnect the tubing to the tee.
Turn on the feed line. The filter pressure should now register on the line pressure gauge.

11
Disconnect line at tee
Figure 4.
2. The system is designed to normally operate at 50-80 psi. At this pressure, the proper
waste/production ratio is established.
!
YOUR MEMBRANES 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™ RSXII Lite is designed to operate at a recovery rate (percentage of product
water to total water used) at maximum of 50% for feed water of <1000 TDS and 33% 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.
Section 5: System Maintenance
Changing Pre-filter Cartridges
The pre-filter cartridges should be changed, as a rule of thumb, every month, biweekly in heavy
use applications. It is critical that this be done to ensure that pre-treatment cartridges allow
necessary flow and that suspended particulate is removed from the feed water.
To change the cartridges, begin by closing the water supply to the unit. Repeat Step 7 (1) from the
installation instructions above. Thoroughly flush and clean the filter housings while they are
disassembled.
If a carbon block (CBC) cartridge is used for the pre-filter housing and is the only pre-filter for
chlorine, make sure that the cartridge is changed in accordance with the manufacturer’s
specification for chlorine capacity. Chronic exposure to chlorine will damage the membrane thin
film and degrade system performance.

12
Monitoring your System Performance
Your system will be operating at its peak performance after about 24 hours of operation. You
should develop a daily (or other periodic) log to track line pressure, post filter pressure, feed water
TDS, permeate TDS, permeate flow rate and waste flow 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.
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 flow 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.
Total Dissolved Solids may be measured by toggling the TDS monitor (mounted on the front of the
system) and comparing the incoming (raw) water level with that of the permeate (product water). If
the overall rate of reduction falls below 95%, if may indicate a degrading membrane and you
should consult your dealer. A second sample may be tested with another TDS meter to verify the
initial reading.
The membrane element life will range from 1 to 5 years, depending on the quality of the raw water.
See S.3 (7)(2) for membrane removal and installation instructions.
If you suspect your membrane element requires replacement, contact Waterite or your dealer. Do
not attempt to clean the element yourself, as it requires specialized chemicals, procedures and
equipment.
A Word on your Warranty
Keep your bill of sale and your warranty certificate, 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 Lite 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-filter cartridges,
freight charges, labour to remove or re-install equipment, use with feed water in excess of 1500
TDS, use of feed water that does not meet recommended conditions and with system alterations
made, without a written approval from Waterite.

13
Section 6: Trouble Shooting Guide
Problem Possible Cause Solution
Low or Declining Water supply valve closed. Open valve.
Permeate Production Crimped poly product line Repair or replace tube
Raw water TDS too high Consult dealer – may
need pre-treatment.
Membranes fouled. Clean or replace
membrane.
Fast flush system.
Feed water content has changed. Review pre-treatment.
Pre-treatment cartridges plugged. Replace cartridges.
Leaking Joints Fittings not seated. Disconnect fitting
and reseat tube.
Filter housing leaking. Tighten with housing
wrench.
Inspect o-rings for cuts
or crimps.
Low System Pressure Clogged pre-filters. Replace pre-filter
cartridges.
Low feed water pressure. Check feed water
source for restrictions.
Malfunctioning pressure gauge. Replace gauge.
High System Pressure Plugged or restricted concentrate orifice Clean or replace valve
and/or recirculation valves. or orifice.
Crimped concentrate or product line. Repair or replace tube.
Malfunctioning pressure gauge. Replace gauge.
Permeate TDS Rising Scaled or fouled membranes. Replace membranes.
Fast flush membrane.
Pre-treatment system failure. Check feed water
quality.
Section 6: Common Replacement Parts
Part Description
Part Number
Excelpure 1
0” 5 Micron PP Filter Cartridge PP10B05
Excelpure 20”
Carbon Block Filter Cartridge CBC10B
Auto Shutoff Valve
ASV3800
Pressure Gauge, 0
-100 psi AG06
Pre
-filter Housing Wrench HAN13W
Orifice Plate
5865071
Black Max
400GPD Membrane ULP TFC BME3013SXL

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Section 7: VectapureTM RSXII Lite Performance Log
Date
Line
System
Permeate
Feed Water
Pre-Filter
Fast
Permeate
Waste
Pressure
Pressure
TDS
TDS
Change
Flush
Flow Meter
Flow Meter

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Date
Line
System
Permeate
Feed Water
Pre-Filter
Fast
Permeate
Waste
Pressure
Pressure
TDS
TDS
Change
Flush
Flow Meter
Flow Meter

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To calculate the Permeate flow using the Temperature Correction Chart.
Use the Nominal Membrane Flow Rate, (RSXII Lite = 800 gpd*) divided by the Temperature
Correction Factor for your raw water temperature.
Example:
An RSXII Lite has 2 membranes each nominally rated at 400 gpd and the raw water temperature is
9.0 degrees Celsius.
(2x400) / 2 = 350 gpd Temperature Corrected.
Of course the actual production of your system will also depend on the raw water quality being
supplied to the RSX unit.
(*) – Based on feed water at 500ppm NaCl, 7.5 pH, 25 degree Celsius water and a 15%
recovery rate. Permeate production can vary +/- 15% from factory.

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WATERITE, INC.
Winnipeg, Manitoba
Canada
www.waterite.com