Watts Premier WP-4V User manual

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Refer to enclosed warranty and operating parameters to ensure proper use with your water supply.
Watts Premier, Inc. 1725 W. Williams Drive C-20 Phoenix, AZ 85027
Phone: [phone] www.wattspremier.com Fax: [phone]
Save manual for future reference
MODEL
WP-4V
Warning
Please read carefully before proceeding with installation. Your failure to follow any attached instructions
or operating parameters may lead to the product’s failure and possible damage to property.
System Tested and certifi ed by NSF International against ANSI/NSF
Standard 53 & 58 for the reduction of the claims specifi ed on the
performance data sheet.
Manual Edition: 9/16/05
P/N: 199393
WP-4V
WP-4V

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Thank you for your purchase of a state of the art Watts Premier Reverse Osmosis (RO) water treatment system. Water
quality concerns are becoming more of a focus for the public. You may have heard about contaminants in the drinking water,
such as Arsenic, Chromium, Cryptosporidium or Giardia. There may also be some local water issues such as high levels of
Lead and Copper. This Watts Premier water treatment system has been designed and tested to provide you with high quality
water for years to come. The following is a brief overview of the system.
Your Reverse Osmosis System:
Osmosis is the process of water passing through a semi permeable membrane in order to balance the concentration of
contaminants on each side of the membrane. A semi permeable membrane is a barrier that will pass some particles like clean
water, but not other particles like arsenic and lead.
Reverse osmosis uses a semi permeable membrane; however, by applying pressure across the membrane, it concentrates
contaminants (like a strainer) on one side of the membrane, producing clean water on the other. This is why RO systems produce
both clean drinking water and waste water that is flushed from the system. This reverse osmosis system also utilizes carbon
block filtration technology, and can therefore provide much higher quality drinking water than carbon filtration systems.
Your system is a Four Stage RO which is based upon four separate treatment segments within one complete water filtration
system. These stages are as follows:
Stage 1 – Sediment filter, recommended change 6 months.
The first stage of your RO system is a five micron sediment filter that traps sediment and other particulate matter
like dirt, silt and rust which affect the taste and appearance of your water.
Stage 2 – Carbon filter, recommended change 6 months.
The second stage contains a 5 micron carbon block filter. This helps ensure that chlorine and other materials that
cause bad taste and odor are greatly reduced.
Stage 3- Membrane, recommended change 2-5 years.
Stage three is the heart of the reverse osmosis system, the RO membrane. This semi-permeable membrane will
take out TDS & Sodium and a wide range of contaminants such as Perchlorate, Chromium, Arsenic, Copper, Lead,
as well as Cysts, such as Giardia and Cryptosporidium and much more. Because the process of extracting this high
quality drinking water takes time, your RO water treatment system is equipped with a storage tank.
Stage 4- VOC Block, recommend change 12 months.
Watts Premier WP-4v reverse osmosis system conforms to NSF/ANSI 58 for VOC reduction. Through the specialty
formulated VOC post filter your system is capable of reducing harmful Volatile Organic Chemicals (VOC) like
MTBE’s, Atrazine, Benzene, 2,4-D,Lindane and others from your drinking water. It is estimated that VOC’s are
present in one-fifth of the nation’s water supplies. These water contaminants can enter ground water from a variety
of sources including localized use of herbicides and pesticides, gasoline or oil spills, leaking underground fuel tanks,
septic system cleaners, and chemicals used in the dry-cleaning industry. See performance data sheet for individual
contaminants and reduction performance.
System Maintenance
Just because you can not taste it, does not mean that it is not there. Contaminants such as lead, chromium, VOC’s and arsenic
are undetectable to the taste. Additionally, over time if you do not replace the filter elements, other bad tastes and odors will
be apparent in your drinking water.
This is why it is important to change out your filter at the recommended intervals as indicated in this system manual. When
replacing the filter elements, pay special attention to any cleaning instructions. Should you have any further questions please
refer to our website at www.wattspremier.com or call our customer service dept. at 1-800-752-5582.

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With proper installation and maintenance, this system will provide you with high quality water for years
to come. All of Watts Premier’s water enhancement products are rigorously tested by independent
laboratories for safety and reliability. If you have any questions or concerns, please contact our
customer service department at 1-800-752-5582 (outside USA 623-931-1977) or refer to our on-line
trouble shooting at www.wattspremier.com.
Table of Contents
Operational Parameters ........................................................................................................................ 4
Contents of Reverse Osmosis System .................................................................................................. 4
Tools Recommended For Installation .................................................................................................... 4
Drill a Hole for the Faucet in a Porcelain Sink ....................................................................................... 5
Punch a Hole for the Faucet in a Stainless Steel Sink .......................................................................... 5
Watts Faucet Installation ....................................................................................................................... 6
Watts Faucet Battery Installation ........................................................................................................... 6
Adapta Valve Installation ...................................................................................................................... 7
Reverse Osmosis Module Mounting ..................................................................................................... 7
Drain Saddle Installation ....................................................................................................................... 8
Tank Elbow Installation .......................................................................................................................... 8
Blue Tube Connection (From Unit to Tank) ........................................................................................... 9
Green Tube Connection ........................................................................................................................ 9
3/8” Black Tube Connection ................................................................................................................ 10
How to use Quick Connect Fittings............................................................................................. ........ 10
Red Tube Connection (From Faucet) ...................................................................................................11
Blue Tube Connection (From Faucet) ..................................................................................................11
Start up Instructions .............................................................................................................................11
6 Month Maintenance .......................................................................................................................... 12
Annual Maintenance ............................................................................................................................ 13
Membrane Replacement .................................................................................................................... 13
Cleaning Flow Restrictor ..................................................................................................................... 14
Checking Air Pressure in the Tank ....................................................................................................... 15
Procedure for Extended Non-Use ...................................................................................................... 15
Trouble Shooting .� 16
Arsenic Fact Sheet. ............................................................................................................................. 17
California Certification ......................................................................................................................... 18
Performance Data Sheets ................................................................................................................... 19
VOC Performance Data Sheet ............................................................................................................ 20
Unit Drawing ........� 21
Parts List ............� 21
Other Products ........................................................................................................................... 22 - 24
Warranty Registration .................................................................................................................. 25 & 26
Service Record ...� 27
Limited Warranty � 28

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Hardness: Recommended hardness should not exceed 10 grains per gallon, or 170 ppm. System
will operate with hardness over 10 grains but the membrane life will be shortened. (Addition of a water
softener may lengthen the membrane life.)
1 Tank – White
1 Module – White
1 Parts Bag
1 Faucet Bag
If any of the items are missing please contact
Watts Premier prior to installing.
Tools Recommended For Installation
1 1/4" Hole Saw Bit for Faucet opening
Round Knock out Punch for Stainless Sinks 1 ¼”
Adjustable Wrench
Sharp Knife
1 / 2" - 13/16” Open End Wrenches
Phillips Screw Driver
Needle Nose Pliers – Adjustable Pliers
Electric Drill
1/8", 1/4" & 3/8" Drill Bits
Contents of Reverse Osmosis (RO) System
Note: Reverse Osmosis water should not be run through copper tubing as the purity of the water will
leach copper and cause an objectionable taste in water and may cause damage to copper tubing. Watts
supplies specialty medias that can be used if copper tubing is down stream of the RO. Be sure to follow
any state or local regulations.
Operational Parameters
Note: The operating pressure in your home should be tested over a 24 hour period to attain the
maximum pressure. If it is above 85 psi a pressure regulator is recommended and if over 100 psi
then a pressure regulator is required. Should you need a gauge to check your pressure, see page
24 (item no. 261003).
1 Manual and Warranty Card
Operating Temperatures: Maximum 100°F (37.8°C) Minimum 40°F (4.4°C)
Operating Pressure: Maximum 85 psi (6.0 kg/cm2) Minimum 40 psi (2.80 kg/cm2)
pH Parameters: Maximum 11 Minimum 2
Iron: Maximum 0.2 ppm
TDS (Total Dissolved Solids) < 1800 ppm
Turbidity < 5 NTU

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Make sure the surroundings of the sink are cooled before mounting the
faucet to the sink after drilling. Remove all sharp edges.
Step 3
Step 4
Determine desired location for the faucet on your sink and place a
piece of masking tape on location where the hole is to be drilled. Mark
the center of the hole on the tape.
Step 1
Using a variable speed drill on the slowest speed, drill a
1
/ 8 “ pilot hole
through both porcelain and metal casing of sink at the center of the
desired location. (If drill bit gets hot it may cause the porcelain to crack
or chip), use lubricating oil or liquid soap to keep cool.
Using a 1 ¼” hole saw, proceed to drill the large hole. Keep drill speed
on the slowest speed and use lubricating oil or liquid soap to keep the
hole saw cool during cutting.
Step 2
Drill a Hole for the Faucet in a Porcelain Sink
Punch a Hole for the Faucet in a Stainless Steel Sink
Drill a ¼” pilot hole. Use a
1
/ 2 ” Hole Punch and an adjustable wrench to
punch the hole in the sink. Change to the 1 ¼” Hole Punch to enlarge
the hole.
Step 5
The faucet can now be installed.
If mounting faucet to a Stainless Steel Sink you will need a 1 ¼” Hole
Punch. The faucet opening should be centered between the back
splash and the edge of the sink, ideally on the same side as the vertical
drain pipe.
Note:
Note: Most sinks are predrilled with 1 ½” or 1 ¼” diameter hole that you can use for your RO faucet.
(if you are already using it for a sprayer or soap dispenser, see step 1).
Porcelain sinks are extremely hard and can crack or chip easily. Use extreme caution
when drilling. Premier accepts no responsibility for damage resulting from the installation
of faucet.

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Gather and identify the faucet pieces.
Remove faucet base & faucet spout from their respective
plastic bags. From above the sink, feed the faucet tubing &
toggle bolt down through the 1¼” mounting hole in the sink.
Ensure that the soft rubber gasket is uniformly positioned in
between the base and the top of the sink.
Align the faucet base so that the handle is on the right side and
the base is sitting flush on the sink top. Turn the handle down
(towards you) to the “ON” position to reveal the tightening
screw (located where the spout will be inserted). Using a
phillips head screwdriver, turn the screw clockwise until the
toggle bolt secures the faucet base snug onto the sink top,
do not over torque toggle bolt (5lb.in. max)
Once the faucet base is securely fastened to the sink top,
insert the faucet spout into the faucet base until it is fully
seated. Turn the handle up (away from you) to the “OFF”
position.
Completion of faucet installation (tubing connections) will be
done later in this manual. Refer to the Black Tube Connection
(page 10), Red Tube Connection (page 11), and Blue Tube
Connection (page 11) sections of this manual.
Remove the faucet battery from the plastic bag. Locate the faucet battery compartment drawer on the base of the faucet.
Using a small screwdriver to pry on the notch at the compartment drawer face, slide the drawer out. Insert the battery into
the battery compartment drawer.
NOTE: The + side of the battery faces up. The compartment drawer will not slide in if the battery is installed upside
down.
Once the battery is in place, slide the battery compartment drawer back into the base until it is flush.
When the battery is first installed, both the red and green lights will flash to indicate that both lights are functional. Thereafter,
it will flash green only when the faucet handle is turned to the “ON” position. When your system is ready to be serviced
(approximately six months) you will see the light flash red when the handle is turned to the “ON” position. Refer to the Six
Month Maintenance (page 12) section of this manual for filter replacement.
NOTE: If your water usage is high the red light may activate sooner than six months indicating the need for filter
replacement.
This faucet provides an electronic monitor that will tell you when it is time to replace the filters in your water
treatment device. The light indicator will be green for the life of the filter, turning red once the life of the filter has
been reached. This can occur after six months of use, or sooner for heavy water usage. To reset the electronic
monitor during replacement of filters, simply slide out the battery from the faucet and reinsert. The battery life is
expected to last one year, however, for heavy use the battery may need to be replaced sooner. For replacement,
look for battery number CR2354 (Watts p/n:116082) which is available at your local battery store or contact Watts
Premier at 800-752-7782. You can also order online at www.wattspremier.com.
WATTS Premier Chrome Monitor
(Top Mount) Faucet Installation
Step 6
Step 7
Step 8
Step 9
Step 10
Faucet Battery Installation
Minimum Maximum
Mounting Hole Size 1.00” 1.25”
Torque on Toggle Bolt 5lb.in. (max)

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Adapta Valve Installation - Part# 134007
Turn off the cold water supply to the faucet by turning the angle stop valve completely off.
Reverse Osmosis Module Mounting
Step 13 Determine best location for the RO module to be mounted to allow
for future system maintenance. The parts bag has 2 self tapping
screws. Using a phillips screwdriver, screw them into the cabinet
wall 6” apart and 16” from the bottom of the cabinet.
Step 11
Step 12 Attach adapta valve as illustrated in the three photos above, choosing the configuration that
fits your plumbing. (When attaching the adapta valve to straight pipe threads, use Teflon
tape on the threads.) The green tube from inlet side of RO module will be cut to length and
attached later in the installation.
Do not cut any RO system tubes at this timeNote:
Caution: Water supply line to the system must be from the cold water supply line only. Hot
water will severely damage your system.
Configuration for 3/8”
compression fittings
Configuration for 1/2”
compression fittings
Hot
Supply
Cold
Supply

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Thread the plastic elbow (supplied in the parts bag) onto the stainless
steel connection on the top of tank. Tighten using an adjustable
wrench. Do not over tighten as plastic could crack.
Step 17
Step 18
Wrap (7 to 12 turns) Teflon tape clockwise around the male pipe
threads (MPT) on the Stainless Steel fitting on top of the tank.
Tank Elbow Installation - Part# 125032
Do not Teflon tape the plastic elbow threads as this may cause
leaks.
Caution:
Do not let the tape cover the opening.
*Note:
Drain Saddle fits standard 1 ¼” – 1 ½” drain pipes
Drain Saddle Installation - Part# 164016
Step 14
Step 15
Step 16 Drill a ¼” hole through the drain pipe at least 1 ½” above the nut of the
P-trap to allow for the removal of the P-trap if necessary. Assemble
the drain saddle around the drain pipe. Position the drain saddle
over the drilled hole in pipe. Insert screw driver into the opening
of the drain saddle and align with drilled hole in drain pipe. Using
Phillips screw driver tighten screws evenly and securely on both
sides of the drain saddle. Attach black compression nut, but do not
tighten at this time. The black tubing will be installed later.
The small square black foam gasket with a circle cut out of the middle
must be applied to the inside of the drain saddle. Remove sticky tape
backing and stick to the drain saddle as shown.
1 Black compression nut
1 Semicircle bracket with opening
2 Screws
1 Foam washer
2 Nuts for screws
1 Semicircle bracket
Gather the pieces of the drain saddle
Caution: Do not over tighten the screws. It may crack the drain saddle.

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Connect Blue Tube from TANK Port on RO Module to the Tank
Position tank in desired location. Stand it upright or lay it on its
side (using the black plastic stand). Measure the blue tube from
the RO module port marked TANK over to the tank and cut it to
desired length.
Insert the blue 3/8” tube into the compression nut as far as it will
go. Tighten the compression nut securely with a wrench.
Step 22
Green Tube Connection
Step 19
Step 21
Step 20
Adapta Valve - Part # 134007
Remove a brass nut, plastic sleeve and brass insert from the parts
bag. Place nut on the tube first, then the sleeve (Small taper end
of sleeve must point to the end of tube) and then insert the brass
insert into the end of the tube.
Insert the green tube into the ¼” opening on the adapta valve until
it stops. Slide nut and sleeve down and thread onto the male pipe
threads. Use a ½” wrench to securely tighten. Leave enough
tube so it is not kinked and cut the tube to desired length.

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3/8” Black Tube Connection from Faucet
Measure the black tube from faucet to the black drain saddle and
make a straight cut through tube.
Remove black plastic nut from drain saddle. Slip black tube
through black nut. Insert black tube into the opening in the drain
saddle and hand tighten the black nut, and add 1/4 turn with a
wrench.
This is a gravity fed line, if there is any bend or dip in the
tube the rinse water will not flow into the drain properly.
Water may back up and come out the air gap hole in the
back of the faucet base.
The tubing must be as SHORT and STRAIGHT as possible
to the drain saddle, making a downward slope from module
to drain saddle to allow for proper drainage.
Step 24
Note:
Note:
Step 23
How To Use the Quick Connect Fittings on the RO Module
To make a connection, the tube is simply pushed into the fitting. Place a piece of tape 1/2” from end
of tube to indicate how far the tube should be inserted. The unique patented John Guest® locking
system holds
Cut the tube square. It is essential that the outside diameter
be free of score marks and that burrs and sharp edges be
removed before inserting into fitting.
Fitting grips before it seals. Ensure tube is pushed into
the tube stop.
Push the tube into the fitting, to the tube stop. The collet
(gripper) has stainless steel teeth which hold the tube
firmly in position while the O-ring provides a permanent
leak proof seal.
Pull on the tube to check that it is secure. It is a good practice
to test the system prior to leaving site and /or before use.
To disconnect, ensure the system is depressurized before
removing the tube. Push in collect squarely against face
of fitting. With the collet held in this position, the tube can
be removed. The fitting can then be reused.

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Connect the Blue Tube from the Faucet to RO Module
Step 26
Step 25
Connect the Red Tube from Faucet to RO Module
Insert the red 1/4” tube from the faucet into the port on the module
marked “DRAIN”. Make sure the tube is pushed in all the way to
the tube stop.
Insert the blue 3/8” tube from the faucet into the port on the module
marked “FAUCET”. Make sure the tube is pushed in all the way
to the tube stop.
Start up Instructions
Register by mail, phone, fax or internet. Watts Premier uses this information only to provide
a filter change reminder service. Pre-filters should be changed every 6 months and VOC
filter annually. You may register your warranty via our website at www.wattspremier.com or
call 1-800-752-5582 (within USA only) / FAX#: [phone].
NOTE:
If system is connected to an Ice Maker, turn the Ice Maker off until flushing is complete and
the tank has refilled. The system should have an in-line valve installed before the Ice Maker
so it can be closed to prevent water flowing to the Ice Maker. Your tank must be allowed to
fill up in order for the unit to shut off. (If you are installing an Ice Maker Kit, tee off after the
final filter).
After the Tank has filled, open the RO Faucet to flush the Tank completely to remove carbon
particles from final filter. Repeat this step two more times. The fourth tank can be used for
drinking. *Note: The flushing of the tank 3 times is only necessary during initial installation.
This should take about a day to complete.
Step 6
Open the RO faucet and leave it open until water begins to trickle out, (it will come out
slowly).
Step 5
Turn on the incoming cold water at the angle stop valve. Open the needle valve on the brass
Adapta Valve by turning counter clockwise. Check the system for leaks and tighten any fitting
as necessary. (Check frequently over the next 24 hours to ensure no leaks are present).
Step 4
Step 3
Step 2
Step 1
This reverse osmosis system contains a replaceable component critical to the efficiency of
the system. Replacement of the reverse osmosis component should be with one of identical
specifications, as defined by the manufacturer, to assure the same efficiency and contaminant
reduction performance. Periodic inspection and following proper system maintenance is critical
for continued performance.
After water trickles out of the faucet, close RO faucet so the tank will fill with water. The tank
will take 6 to 10 hours at first to fill completely depending on the production capability of the
membrane, local water temperature and pressure.

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VOC BLOCK
√ Stage 1 - Sediment Filter (part #: 104017) √ Stage 2 - Carbon Filter (part #: 101009-white end caps)
√ Stage 4 - VOC Filter (part #: 101013-dark blue end caps)
Clean all filter housings (bowls) with a mild soap solution and rinse
with water. Check O-rings and lubricate with water soluble lubricant.
KY Jelly® , Canola oil and other water based lubricants can be used,
petroleum based lubricants (such as Vaseline®) must not be used.
For more leverage, leave RO module attached to wall of cabinet. If you
are unable to access the module you may remove it to change filters.
Starting with the closest housing, remove and empty water, then discard
filters. Continue on to the 2nd and/or 3rd Bowls.
The sediment filter has a cloth like appearance. It should be in the 1st
housing on the side with tubing connections.
6 Month System Maintenance
Turn off incoming water supply to the RO by turning the needle valve
on the adapta valve clockwise. (The green tube is connected to the
adapta valve.)
Step 1
Step 3
Step 4
Step 5
Step 6
Let system sit for a few minutes after tank is empty to depressurize
before attempting to remove filter housings.
Open RO Faucet to allow water to drain from the tank until completely
empty. Water can be saved in a container for drinking or to rinse
system parts.
Check O-rings to make sure they are still in place.
Insert the Carbon Block filter (filter has a gasket on each end) into the
middle housing.
Step 7
Step 8 The VOC Carbon Block must be changed annually. Insert the VOC
Carbon Block into the last housing (make sure the end with the small
opening is up. Screw on all the filter bowls).
Step 2
Step 9
Open RO faucet and leave open until water begins to trickle out. Close
RO faucet to allow tank to fill with water.
Caution:
Watts Premier sells a filter change kit which includes pre-filters, a final filter, connectors, and a wrench.
Call 1-800-752-5582 or buy online at www.wattspremier.com.
Turn water on to the unit by turning the needle valve on the adapta
valve counter clock wise.
Step 10
Note: If also doing the annual maintenance at this time continue to Step 2
on page 13.
NOTE: This reverse osmosis system contains a replaceable component critical to the efficiency of the
system. Replacement of the reverse osmosis component should be one of identical specifications, as
defined by the manufacturer, to assure the same efficiency and contaminant reduction performance.

Page 13
Membrane Replacement
Membranes have a life expectancy between 2 and 5 years, depending on the incoming water conditions
and the amount of use of the RO system. This reverse osmosis membrane is critical for effective reduction
of total dissolved solids. The product water should be tested periodically to verify that the system is
performing satisfactorily.
Normally, a membrane would be replaced during a semiannual or annual filter change. However, if at
any time you notice a reduction in water production or an unpleasant taste in the reverse osmosis water,
it could be time to replace the membrane. A water sample may be sent Watts Premier for a free test
or a TDS (total dissolved solids) monitor can be purchased from Watts Premier to test the incoming and
reverse osmosis water at home.
To send a water sample, using 2 clean containers put ½ cup of tap water in one
container and ½ cup of reverse osmosis water in 2nd clean container. Clearly
mark each container. Watts Premier will test the water and call or mail you the
Step 1
Step 2 Remove the membrane vessel on top of the unit by turning the vessel
counter clockwise to loosen.
Turn off the cold water supply and open the RO faucet to drain the
tank.
Annual sanitizing of unit is recommended. Turn off incoming water supply. If sanitizing your
RO remove sediment & carbon filters from filter housing, as well as the RO membrane before
sanitizing.
Open Membrane vessel and remove the membrane from the membrane vessel. Replace
empty membrane vessel onto the unit.
Leave filters out, replace the last two (of three) empty filter housings (hand tight) onto unit.
Measure & pour either 1/2 cup of 3% hydrogen peroxide or 2 tablespoons of common
household bleach into the 1st filter housing and hand tighten onto unit.
Turn on incoming water supply. Wait 1 minute for the unit to pressurize. Turn on the RO
faucet and let the water run for 30 seconds then turn off the RO faucet . Let the unit rest for
2 minutes. Open RO faucet again and let the water run for 5 more minutes.
Turn off incoming water supply and make sure tank is completely drained. Refer to 6 months
filter change to now install new filters. Make sure to insert RO membrane back into the
manifold vessel.
Open membrane vessel and insert the RO membrane back into the manifold, making sure not
to kink the O-ring. Tighten the membrane vessel back on the RO unit (Refer to “Membrane
Replacement” below for details).
Turn on incoming water supply. Let tank fill for 2-3 hours. Check for leaks and drain tank
one last time.
Annual Maintenance
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7

Page 14
Pull firmly on the membrane to remove from the housing and
discard.
Lubricate the O-rings of the new membrane with water soluble
lubrication such as KY Jelly ® before inserting into housing. Insert
end with the two black O-rings into the cap. Twist the membrane as
you push firmly into the cap.
(25 GPD membrane part #: 110009)
(50 GPD membrane part #: 110019)
Step 3
Step 4
The flow restrictor plug (part no. 164015) must be cleaned each time
you change the membrane. Remove the existing flow restrictor with
a screwdriver.
Step 6
Step 8 Follow the Start Up Instructions on page 11.
Step 5 Replace the vessel onto the cap by turning clockwise. Tighten
securely.
Step 7 Wash with soap and water and rinse. Reinsert the flow restrictor plug
and tighten until the head is flush with module.
Cleaning the Flow Restrictor

Page 15
Check air pressure when tank is empty of water!
Check air pressure in the tank when you notice a decrease in available
water from the RO system.
It is recommended to drain the tank of water prior to checking the air
pressure.
Once all water in the tank is purged, check air pressure. The
recommended pressure is 5 -7 psi. For greater flow, you can
increase the pressure, but this will reduce the total amount of
water that the tank can hold.
Check Air Pressure in the Tank
Step 1
Note:
Step 2
Procedure for Extended Non-Use
If the system will not be used for an extended period (more than 2
months), shut the system down, turn off the water supply by turning the
“T” on the adapta valve counter-clockwise and remove the membrane.
Place the membrane in a sealed plastic bag with a few drops of RO
water and place in your refrigerator.
For restart, follow annual sanitization procedures.

Page 16
TROUBLE SHOOTING
Problem Cause Solution
1. Low/Slow Production Low Water Pressure Assure a minimum of 40 psi incoming water pressure.
Premier sells a booster pump if home water pressure is
low. Maker sure water supply is turned on and Adapta
Valve is all the way open
Crimps in tubing Check tubing and straighten or replace as necessary.
Clogged pre-filters Replace pre-filters.
Fouled membrane Replace membrane and clean flow restrictor.
2. Milky colored Water Air in system Air in the system is a normal occurrence with initial start
up of the RO system. This milky look will disappear
during normal use within 1-2 weeks. If condition reoccurs
after filter change, drain tank 1 to 2 times.
3. Water constantly Low water pressure See #1 Above
running unit will not
shut off Fouled membrane Replace membrane
High water pressure Check incoming water pressure to make sure it does not
exceed 100psi. A pressure relief valve may be necessary.
High air pressure in tank Empty storage tank of water. Set tank air pressure to 5
psi. See Page 15.
4. Noise from faucet or drain Air gap faucet Inherent sound with air-gap faucets.
Location of drain saddle See diagram for proper location of drain saddle.
Higher capacity membrane Normal with high capacity membrane
High water pressure Check incoming water pressure to make sure it does not
exceed 100 psi. A presser relief valve may be necessary.
5. Faucet leaks from Crimp or loop in drain line Straighten black 3/8 drain tube. Cut off any excess tubing
the air gap feature Drain tube clogged/restricted Caused from dishwasher or garbage disposal.
Disconnect the 3/8” black tube at the drain, clean the 3/8”
black tube out with a wire, then reconnect.
6. Small amount of water in System just starting up Normally it takes 6-10 hours to fill tank. Note: Low
storage tank pressure and/or temperature can drastically reduce
production rate.
Low water pressure See #1 Above
Too much air in tank Add air if below 5 psi and bleed if above 5 psi. Check
only when tank is empty of water. See Page 15.
7. Water leaks from the Not properly tightened. Tighten the bowl
filter housing Missing or kinked O-ring Turn off the water supply. Release the pressure, remove
bowl and replace the O-ring. (p/n 113043). Make sure
the O-ring is seated in the filter bowl properly before
reinstalling the filter bowl.

Page 17
Arsenic (As) is a naturally occurring contaminant found in many ground waters. Arsenic in water
has no color, taste or odor. It must be measured by an arsenic test kit or lab test.
Public water utilities must have their water tested for arsenic. You can obtain the results from your
water utility contained with in your consumer confidence report. If you have your own well, you
will need to have the water evaluated. The local health department or the state environmental
health agency can provide a list of test kits or certified labs.
There are two forms of arsenic: pentavalent arsenic (also called As (V), As (+5)) and trivalent
arsenic (also called As (III), As (+3)). In well water, arsenic may be pentavalent, trivalent, or a
combination of both. Although both forms of arsenic are potentially hazardous to your health,
trivalent arsenic is considered more harmful than pentavalent arsenic.
RO systems are very effective at removing pentavalent arsenic. A free chlorine residual will
rapidly convert trivalent arsenic to pentavalent arsenic. Other water treatment chemicals such
as ozone and potassium permanganate will also change trivalent arsenic to pentavalent arsenic.
A combined chlorine residual (also called chloramine) where it does convert trivalent arsenic to
pentavalent arsenic, may not convert all the trivalent arsenic in to pentavalent arsenic. If you get
your water from a public water utility, contact the utility to find out if free chlorine or combined
chlorine is used in the water system.
This Watts Premier reverse osmosis system is designed to remove up to 98% of pentavalent
arsenic. It will not convert trivalent arsenic to pentavalent arsenic. Under laboratory standard
testing conditions, this system reduced 0.30 mg/L (ppm) pentavalent arsenic to under 0.010
mg/L (ppm) (the USEPA standard for drinking water). Actual performance of the system may
vary depending on specific water quality conditions at the consumer’s installation. In addition to
the independent laboratory standard testing conditions Watts Premier has conducted additional
field testing on our reverse osmosis units to determine trivalent arsenic reduction capabilities.
Based upon Watts Premier field testing, it has been determined that the RO units are capable
of reducing up to 67% of trivalent arsenic from the drinking water.
The RO membrane component of this Watts Premier reverse osmosis system must be maintained
according to its recommended maintenance cycle. Specific component identification and ordering
information can be found in the installation/operation manual maintenance section, by phone at
1-800-752-5581 or online www.wattspremier.com
California Proposition 65 Warning
WARNING: this product contains chemicals known to the State of California to cause cancer
and birth defects or other reproductive harm. (Installer: California law requires that this warning
be given to the consumer). For more information: www.wattsind.com/prop65.
Arsenic Fact Sheet

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California Certification

Page 19
Description Replace
Sediment Filter
 Part# 104017 6 Months
Carbon Filter
 Part# 101009 6 Months
Depending upon incoming feed water conditions replacement time
frame may vary.
This system has been tested according to NSF/ANSI 58 for reduction of the substances listed below. The concentration of the indicated substances in water
enter� ed in NSF/ANSI 58. This
system has been tested for the treatment of water containing pentavalent arsenic (also known as As (V), As (+5), or arsenate) at concentrations of 0.30 mg/L or
less. This system reduces pentavalent arsenic, but may not remove other forms of arsenic. This system is to be used on water supplies containing a detectable free
chlorine residual at the system inlet or on water supplies that have been demonstrated to contain only pentavalent arsenic. Treatment with chloramine (combined
chlorine) is not sufficient to ensure complete conversion of trivalent arsenic to pentavalent arsenic, Please see the Arsenic Facts section of the Performance Data
Sheet for further information.
Avg. In. Avg. Eff. % Reduction pH Pressure Max Eff. Inf. challenge Max Allowable
(mg/L) (mg/L) mg/L concentration concentration
mg/L mg/L
Arsenic (Pentavalent) 334.62 ug/L 5.039 ug/L 98.4% 50psi 19 ug/L 0.30±10% 0.010 mg/L
Barium Reduction 10.2 0.13 98.7% 7.24 50psi 0.27 10.0±10% 2.0
Cadmium Reduction 0.031 0.0001 99.7% 7.49 50psi 0.0009 0.03±10% 0005
Chromium (Hexavalent) 0.30 0.006 98.0% 7.24 50psi 0.013 0.03±10% 0.1
Chromium (Trivalent) 0.30 0.003 99.0% 7.24 50psi 0.008 0.03±10% 0.1
Copper Reduction 3.0 0.04 98.7% 7.64 50psi 0.06 3.0±10% 1.3
Cysts 222,077#/ml 10 #/ml 99.99% 50psi 58 minimum 50,000/mL N/A
Fluoride Reduction 8.0 0.33 95.9% 7.49 50psi 0.47 8.0±10% 1.5
Lead Reduction 0.15 0.004 97.3% 7.49 50psi 0.008 0.15±10% 0.0107
Perchlorate 0.10 0.003 96.5% 7.39 50 psi 0.005 mg/L 0.10±10% 0.006
Radium 226/228 25pCi/L 5pCi/L 80.0% 7.24 50psi 5pCi/L 25pCiL±10% 5pCiL
Selenium 0.10 <0.001 99.0% 50psi <0.001 0.10±10% 0.05
TDS 765 24 96.8% 7.84 50psi 39.0 750±40mg/L 187
Turbidity 81 NTU 0.15 NTU 99.8% 50psi 0.28 NTU 11±1 NTU 0.5 NTU
*Refer to the VOC Performance Data Sheet for the complete list of VOC’s.
Recovery - 15.5% Daily Production Rate - 9.06 GPD Efficiency - 8.35%
Depending on water chemistry, water temperature, and water pressure Watts Premier’s R.O. Systems production and performance will vary.
Efficiency rating means the percentage of the influent water to the system that is available to the user as reverse osmosis treated water under
operating conditions that approximate typical daily usage. Recovery rating means the percentage of the influent water to the membrane portion of
the system that �
tank is bypassed. There is an average of 4 gallons of reject water for every 1 gallon of product water produced.
REFER TO OWNER’S INSTALLATION/SERVICE MANUAL FOR FURTHER MAINTENANCE REQUIREMENTS AND WARRANTY
INFORMATION.
Phone: [phone] Fax: [phone]
Email: [email protected]
GENERAL USE CONDITIONS:
1. S� . DO NOT use with water that
is microbiologically unsafe or unknown quality without adequate disinfection before and after the system. Systems certified for cyst reduction may be used on
disinfected water that may contain filterable cysts.
2. Operating Temperature: Maximum: 100°F (40.5°C) Minimum: 40° (4.4°)
3. Operating Water Pressure: Maximum: 85 psi (6.0kg/cm2) Minimum: 40 psi (2.8kg/cm2)
4. pH 2 to 11
5. No iron present in incoming feed water supply.
6. Hardness of more than 10 grains per gallon (170 ppm) may reduce RO membrane life expectancy.
7. Recommend TDS (Total Dissolved Solids) not to exceed 1800 ppm.
Performance Data Sheet
WP-4v
Watts Premier Inc.
1725 W. Williams Drive C-20
Phoenix, AZ 85027 USA
Description Replace
Stage 4 - VOC Block Filter
 Part# 101013 12 Months
(600 Gallons)
RO Membrane
 25 GPD Part# 110009 2 to 5 Years

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Substance Percent Reduction
Influent Challenge
Concentration
(mg/L unless noted)
Maximum
Permissible Product
Water Concentration
ALACHLOR >98% 0.05 0.001
ATRAZINE >97% 0.1 0.003
BENZENE >99% 0.081 0.001
BROMODICHLOROMETHANE (TTHM) >99.8% 0.300 +/- 0.30 0.015
BROMOFORM (TTHM) >99.8% 0.300 +/- 0.30 0.015
CARBOFURAN (Furadan) >99% 0.19 0.001
CARBON TETRACHLORIDE 98% 0.078 0.0018
CHLOROBENZENE (Monochlorobenzene) >99% 0.077 0.001
CHLOROPICRIN 99% 0.015 0.0002
CHLOROFORM (TTHM) >99.8% 0.300 +/- 0.30 0.015
2, 4-D 98% 0.110 0.0017
DBCP (see Dibromochloropropane) >99% 0.052 0.00002
1,2-DCA (see 1,2-DICHLOROETHANE) 95% 0.088 0.0048
1,1-DCE (see 1,1-DICHLOROETHYLENE) >99% 0.083 0.001
DIBROMOCHLOROMETHANE (TTHM;
Chlorodibromomethane) >99.8% 0.300 +/- 0.30 0.015
DIBROMOCHLOROPROPANE (DBCP) >99% 0.052 0.00002
o-DICHLOROBENZENE (1,2 Dichlorobenzene) >99% 0.08 0.001
p-DICHLOROBENZENE (para-Dichlorobenzene) >98% 0.04 0.001
1,2-DICHLOROETHANE (1,2-DCA) 95% 0.088 0.0048
1,1-DICHLOROETHYLENE (1,1-DCE) >99% 0.083 0.001
CIS-1,2-DICHLOROETHYLENE >99% 0.17 0.0005
TRANS-1,2- DICHLOROETHYLENE >99% 0.086 0.001
1,2-DICHLOROPROPANE (Propylene Dichloride) >99% 0.08 0.001
CIS-1,3- DICHLOROPROPYLENE >99% 0.079 0.001
DINOSEB 99% 0.17 0.0002
EDB (see ETHYLENE DIBROMIDE) >99% 0.044 0.00002
ENDRIN 99% 0.053 0.00059
ETHYLBENZENE >99% 0.088 0.001
ETHYLENE DIBROMIDE (EDB) >99% 0.044 0.00002
Furadan (see CARBOFURAN) >99% 0.19 0.001
HALOACETONITRILES (HAN)
BROMOCHLOROACETONITRILE 98% 0.022 0.0005
DIBROMOACETONITRILE 98% 0.024 0.0006
DICHLOROACETONITRILE 98% 0.0096 0.0002
TRICHLOROACETONITRILE 98% 0.015 0.0003
HALOKETONES (HK):
1,1-DICHLORO-2-PROPANONE 99% 0.0072 0.0001
1,1,1-TRICHLORO-2-PROPANONE 96% 0.0082 0.0003
HEPTACHLOR >99% 0.25 0.00001
HEPTACHLOR EPOXIDE 98% 0.0107 0.0002
HEXACHLOROBUTADIENE (Perchlorobutadiene) >98% 0.044 0.001
HEXACHLOROCYCLOPENTADIENE >99% 0.060 0.000002
LINDANE >99% 0.055 0.00001
METHOXYCHLOR >99% 0.050 0.0001
Methylbenzene (see TOLUENE) >99% 0.078 0.001
Monochlorobenzene (see CHLOROBENZENE) >99% 0.077 0.001
PCE (see TETRACHLOROETHYLENE) >99% 0.081 0.001
PENTACHLOROPHENOL >99% 0.096 0.001
Perchlorobutadiene (see HEXACHLOROBUTADIENE) >98% 0.044 0.001
Propylene Dichloride (see 1,2 -DICHLOROPROPANE) >99% 0.080 0.001
SIMAZINE >97% 0.120 0.004
Silvex (see 2,4,5-TP) 99% 0.270 0.0016
STYRENE (Vinylbenzene) >99% 0.15 0.0005
1,1,1-TCA (see 1,1,1 - TRICHLOROETHANE) 95% 0.084 0.0046
TCE (see TRICHLOROETHYLENE) >99% 0.180 0.0010
1,1,2,2- TETRACHLOROETHANE >99% 0.081 0.001
TETRACHLOROETHYLENE >99% 0.081 0.001
TOLUENE (Methylbenzene) >99% 0.078 0.001
2,4,5-TP (Silvex) 99% 0.270 0.0016
TRIBROMOACETIC ACID 0.042 0.001
1,2,4 TRICHLOROBENZENE (Unsymtrichlorobenzene) >99% 0.160 0.0005
1,1,1-TRICHLOROETHANE (1,1,1-TCA) 95% 0.084 0.0046
1,1,2-TRICHLOROETHANE >99% 0.150 0.0005
TRICHLOROETHYLENE (TCE) >99% 0.180 0.0010
TRIHALOMETHANES (TTHM) (Chloroform; Bromoform;
Bromodichloromethane; Dibromochloromethane) >99.8% 0.300 +/- 0.30 0.015
Unsym-Trichlorobenzene (see 1,2,4-
TRICHLOROBENZENE)
>99% 0.160 0.0005
Vinylbenzene (see STYRENE) >99% 0.150 0.0005
XYLENES (TOTAL) >99% 0.070 0.001
VOC Performance Data Sheet
Watts Premier Inc.
1725 W. Williams Drive C-20
Phoenix, AZ 85027 USA