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.
System Tested and certified by NSF International against ANSI/NSF
Standard 53 & 58 for the reduction of the claims specified on the
performance data sheet.
Manual Edition: 10/31/08
P/N: 199393

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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.
Note: Filter life may vary based upon local water conditions and/or use patterns.
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 section 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
Drain Saddle Installation ...................................................................................................................... 7
3/8” Black Drain Tube Connection ........................................................................................................ 8
Reverse Osmosis Module Mounting .................................................................................................... 8
Green Tube Connection ........................................................................................................................ 8
Tank Elbow Installation ......................................................................................................................... 9
Blue Tube Connection (From unit to tank) ............................................................................................ 9
How to use Quick Connect Fittings............................................................................................. ........ 10
Red Tube Connection (From Faucet) .................................................................................................. 10
Blue Tube Connection (From Faucet) ................................................................................................. 10
Start up Instructions .............................................................................................................................11
6 Month Maintenance .......................................................................................................................... 12
Annual Maintenance ............................................................................................................................ 13
Membrane Replacement .................................................................................................................... 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
** Before installation, please take a moment to fill out the warranty card on page 25.

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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 may be shortened. (Addition of a
water softener may lengthen the membrane life.)
1 Tank – White
1 Module – White
1 Parts Bag
1 Faucet Bag
1 Filter Wrench
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 and/or
√ 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
Copper Tubing: 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 Premier supplies specialty filters that can be used if copper tubing is down stream of the
RO. Be sure to follow any state or local regulations.
Operational Parameters
Water Pressure: The operating water pressure in your home should be tested over a 24 hour period
to attain the maximum pressure. If the incoming water pressure 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 water pressure, see page 23 (item no. 261003).
1 Manual
Operating Temperatures: Maximum 100°F (37.8°C) Minimum 40°F (4.4°C)
Operating Pressure: Maximum 85 psi (6.0 kg/cm
2
) Minimum 40 psi (2.80 kg/cm
2
)
pH Parameters: Maximum 11 Minimum 2
Iron: Maximum 0.2 ppm
TDS (Total Dissolved Solids) < 1800 ppm
Turbidity < 5 NTU
* All Filters Are Pre-Installed
Installation must comply with state and local plumbing regulations.
This system is intended to be installed on the cold water line only.

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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 RO faucet on your sink and place
a piece of masking tape on over where the hole is to be drilled. Mark
the center of the hole on the tape.
Step 1
Using a variable speed drill set on the slowest speed, drill a
1
/ 8 “ pilot
hole through both porcelain and metal casing of sink at the marked
center of the desired location. Use lubricating oil or liquid soap to keep
the drill bit cool (If drill bit gets hot it may cause the porcelain to crack
or chip).
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 pre drilled 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. Watts Premier accepts no responsibility for
damage resulting from the installation of faucet.

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Remove faucet base & faucet spout from their respective
plastic bags. Feed the faucet tubing through the round
rubber gasket which you will find in the faucets parts bag.
Peel the white backing from the upper side of the gasket
and press firmly on to the base of the faucet. From above
the sink, feed the faucet tubing & toggle bolt down through
the 1¼” mounting hole in the sink.
Peel the white backing from the bottom side of the rubber
gasket, align the faucet base so that the handle is on the
right side and press the faucet base down firmly over
the mouting hole. 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.
Remove the faucet battery from the plastic bag. Locate
the faucet battery compartment drawer on the base of the
faucet. Use a small screwdriver to pry on the notch at the
compartment drawer face and 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.
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. The battery life is expected
to last one year, however, under heavy use the battery may need to be replaced sooner. For replacement, look
for battery number CR2354 (Watts p/n:116082) which should be available at your local battery store or contact
Watts Premier at 800-752-5582. You may also order online at www.wattspremier.com.
WATTS Premier Monitor (Top Mount) Faucet Installation
(P/N 116174)
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)
Flow Restrictor
Red Tubing (Faucet)
NOTE: Do not cut or shorten the red tubing as this may damage the flow restrictor located inside.
116174

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Adapta Valve Installation - Part# 560070
Turn off the cold water supply to the faucet by turning the angle stop valve completely off.Step 11
Step 12 Attach the adapt-a-valve as illustrated in the three photos above, choosing the configuration
that fits your plumbing. (When attaching the adapt-a-valve to straight pipe threads, use Teflon
tape on the threads.)
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
Drain Saddle fits standard 1 ¼” – 1 ½” drain pipes
Drain Saddle Installation - Part# 164016
Step 13
Step 14
Step 15 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 while positioning the drain
saddle connection over the drilled 1/4” hole. 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 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 gasket
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.
If you have a garbage disposal, do not install the drain line near it. Installation
of the drain line must be either above the disposal, or if a second sink drain
is available, install it above the cross bar on the second sink. Installation of
the drain line near a garbage disposal may cause the drain line to plug. If no
other installation of drain line is available, Watts offers drain line installation
kits (part numbers 164014 and 164020) that can be used with garbage
disposals.
Caution:

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Connect 3/8” Black Tube from Faucet to the Drain
Measure the 3/8” black tube from faucet to the drain saddle on the
drain pipe and make a straight cut to the correct length.
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.
The black 3/8” drain tube must be as SHORT and STRAIGHT as possible to the drain
saddle, making a downward slope from faucet to drain saddle to allow for proper
drainage. This is a gravity fed line and 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.
Step 17
IMPORTANT:
Step 16
Reverse Osmosis Module Mounting
Step 18 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.
Do not cut any RO system tubes at this timeNote:
Step 20
Green Tube Connection
Step 19
Adapt-a-Valve - Part # 560070
Remove a brass nut, plastic sleeve and brass insert from the parts
bag. Place nut on the green tube first, then the sleeve (Small
tapered end of sleeve must point to the end of tube) and then insert
the brass insert all the way into the end of the tube.
Insert the green tube into the ¼” opening on the adapt-a-valve
until it stops. Slide nut and sleeve down and thread onto the
male pipe threads. Use a ½” wrench to securely tighten the nut.
Leave enough tube so it is not kinked and cut the tube to desired
length.

Page 9
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 21
Step 22
Wrap (7 to 12 turns) of 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 let the tape cover the opening.
Note:
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 side of the elbow
previously installed on top of the storage tank and push in as far as
it will go. Tighten the compression nut securely with a wrench.
Step 23
Step 24

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How To Use the Quick Connect Fittings on the RO Module
To make a connection, the tube is simply pushed into the fitting. The unique patented John Guest®
locking system holds the tube firmly in place without deforming it or restricting flow.
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.
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.
Do not cut or shorten the red tubing as this may damage the
flow restrictor located inside.
Note:
A connection to a refrigerator / ice maker may be tee’d into this blue tube.
Watts Premier offers an ice maker install kit part # 500102 (See Page 22).
Note:

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Start up Instructions
Register by mail, phone, fax or internet. Watts Premier uses this information only to provide
a filter change reminder notice. Pre-filters should be changed every 6 months and VOC filter
annually. You may register your system via our website at www.wattspremier.com or call 1-
800-752-5582 (within USA only) / FAX#: [phone].
For Warranty card Please see page 25-26.
If you have connected your RO system to a refrigerator / ice maker, make sure the ice maker
is off (do not allow water to flow to the ice maker) until flushing (Step 5) is complete and the
tank has been allowed to completely fill. Connection from the RO to the ice maker system
should have an in-line valve installed before the ice maker so it can easily be closed to prevent
water flowing to the ice maker during start up and periodic maintenance. Your RO tank must
be allowed to fill up fully in order for the ice maker system to work properly.
After the Tank has filled, open the RO Faucet to flush the tank completely. You will know that
the tank is empty when the flow rate from the RO faucet is down to a trickle. Repeat this step
two more times. The fourth tank can be used for drinking.
Don’t Forget To Register!
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
Adapt-a-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
Close the RO faucet allowing the storage tank to fill with water. It may take 4 to 6 hours to
fill the tank completely depending on the production capability of the membrane, local water
temperature and water pressure.
Congratulations!
You have completed the installation of new your Reverse Osmosis system.
Please Follow the Startup Instructions.
Flushing of the tank 3 times is only necessary during the initial startup and after
replacing the membrane.
During the fill period you may hear water trickling due to the Reverse Osmosis
Process.
Note:
Note:

Page 12
VOC BLOCK
√ Stage 1 - Sediment Filter (part #: 104017)
√ Stage 2 - Carbon Block Filter (part #: 101009-White End Caps)
Clean filter housings (bowls) with a mild soap solution and rinse with
water. Check O-rings and lubricate with water soluble lubricant. KY
Jelly® or other water based lubricants may be used. Petroleum based
lubricants (such as Vaseline®) must not be used.
For more leverage you may leave the RO module attached to wall of
cabinet. If you are unable to access the module while it hangs, remove
it prior to changing filters. Starting with the closest housing
(Stage 1), remove it by turning it clockwise, empty water, then discard
filter. Continue on to the 2nd housing (Stage 2).
Insert the new sediment filter (cloth like appearance) into the 1st filter
housing which is the one closest to the side with tubing connections
and re-install housing.
6 Month System Maintenance
Turn off the incoming water supply to the RO by turning the needle
valve on the adapt-a-valve clockwise until it stops. (Follow the green
tube away from the RO system to find the adapt-a-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 the RO Faucet and allow water to drain from the tank until it is
completely empty.
Insert the new Carbon Block filter (White End Caps) into the middle
housing and re-install housing.
Step 7
Step 2
Step 8
*Order filters by calling 1-800-752-5582 or buy online at www.wattspremier.com.
Turn water on to the unit by turning the needle valve on the adapt-a-
valve counter clock wise.
Note: Water Can be saved in a container for drinking or to rinse system
parts.
Before re-installing the filter bowls back on to the system ,
check O-rings to make sure they are still in place.
Caution:
Open the RO faucet and leave it open until water begins to trickle out
(it will come out slowly).
Step 10
Step 9
Close the RO faucet allowing the storage tank to fill with water. It
may take 4 to 6 hours to fill the tank completely depending on the
production capability of the membrane, local water temperature and
water pressure.
** To reset the electronic monitor during replacement of filters, simply slide out the battery
from the base of the faucet and reinsert.
Note:

Page 13
Annual Maintenance
√ Stage 1 - Sediment Filter (part #: 104017)
√ Stage 2 - Carbon Block Filter (part #: 101009-White end caps)
√ Stage 4 - VOC Carbon Block (part #: 101013-Blue end caps)
√ 1/2 Cup of hydrogen peroxide or 2 tablespoons of common household bleach.
*Order filters by calling 1-800-752-5582 or buy online at www.wattspremier.com.
Insert the new VOC Carbon Block filter (Blue End Caps) into the 3rd filter housing which is the
one farthest from the side with tubing connections and re-install housing.
Step 11
Before re-installing the filter bowls back on to the system , check O-rings to make
sure they are still in place and lubricate with water soluble lubricant.
Caution:
Step 4
Step 5
Step 6
Step 7
Note: Sanitizing of unit is recommended.
Perform steps 1 through 3 in the Six Month System Maintenance (Page 12).
Step 1
For more leverage you may leave the RO module attached to wall of cabinet. If you are
unable to access the module while it hangs, remove it prior to changing filters. Starting with
the closest housing (Stage 1), remove it by turning it clockwise, empty water, then discard
filter. Continue on to the 2nd (Stage 2) and 3rd (Stage 4) housings.
Step 2
Note: If not sanitizing the system skip to step 9.
Open the horizontal membrane housing and remove the RO membrane. Rest the membrane
in a clean, sanitary place. Replace the empty membrane housing onto the unit.
Step 3
Leaving the filters out, replace stage 2 and 4 empty filter housings (hand tight) onto unit.
Measure & pour either 1/2 cup of hydrogen peroxide or 2 tablespoons of common household
bleach into the 1st filter housing (Stage 1) and hand tighten onto unit.
Turn on incoming water supply to the system by turning the adapt-a-valve counter clockwise.
Wait 1 minute for the unit to pressurize. Turn on the RO faucet and let the water run for 30
seconds. Turn off the RO faucet and let the unit rest for 2 minutes. Finally, open the RO faucet
and let the water run for 5 more minutes.
Turn off the incoming water supply to the system by turning the adapt-a-valve clockwise
until it stops. Keep the RO faucet open until the storage tank is completely drained.
Open the membrane vessel and insert the RO membrane back into the manifold while
making sure not to kink the O-rings. Tighten the membrane housing back on the RO unit
(Refer to “Membrane Replacement” below for details).
Step 8 Remove filter housings Stage 1, 2 and 4 and empty of water.
Insert the new sediment filter (cloth like appearance) into the 1st filter housing which is the
one closest to the side with tubing connections and re-install housing.
Step 9
Insert the new Carbon Block filter (White End Caps) into the middle housing and re-install
housing.
Step 10
Step 12 Follow Steps 8 through 10 in the Six Month System Maintenance (Page 12) for startup
directions.
Tip: This is a good time to check the air pressure in your storage tank. For instructions
please see page 15.

Page 14
Membrane Replacement
Membranes have a life expectancy between 2 and 5 years, depending on the incoming water conditions and
the amount the RO system is used. This reverse osmosis membrane is critical for effective reduction of total
dissolved solids (TDS). 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. Watts Premier recommends replacing the membrane when TDS reduction falls below
75%.
Step 1
Step 3 Remove the horizontal membrane housing on top of the unit by
turning it counter clockwise to loosen.
Turn off the incoming water supply to the RO by turning the needle
valve on the adapt-a-valve clockwise until it stops. (Follow the green
tube away from the RO system to find the adapt-a-valve.)
Pull firmly on the yellow RO membrane to remove it from the housing
and discard.
Lubricate the O-rings on the new membrane with a water soluble
lubricant such as KY Jelly ®. Insert the end with the two black
O-rings into the cap. Twist the membrane as you push it firmly into
the manifold.
Step 4
Step 5
Step 6 Replace the membrane housing onto the cap by turning clockwise.
Tighten securely.
A water sample may be sent to Watts Premier for a free diagnosis of your membranes
performace. To send a water sample, use two (2) clean containers and fill ½ cup of tap water
in one container and ½ cup of reverse osmosis water in 2nd container. Clearly label each
sample. Send the samples to the address listed on the cover of this manual attention “Water
Samples”. Watts Premier will test the water and mail or call you with the results.
Note:
Open the RO Faucet and allow water to drain from the tank until it
is completely empty.
Step 2
Before re-installing the membrane housing back on to the
system, check O-ring on the housing to make it is still in
place and lubricate with water soluble lubricant.
Caution:
This reverse osmosis system contains a replaceable component (the RO membrane) which is critical to the efficiency of
the system. Replacement of this reverse osmosis membrane should be with one of identical specifications as defined by
Watts Premier to assure the same efficiency and contaminant reduction performance.
Step 7 Follow Start up instructions on page 11.

Page 15
Once all water in the tank is purged, check air pressure using an air pressure gauge, it
should read between 5 - 7 PSI. (Digital air pressure gauge is recommended)
Check Air Pressure in the Tank
Important:
Step 3
Procedure for Extended Non-Use (More than 2 months)
Turn off the water supply by turning the “T” on the adapt-a-valve clockwise until it stops and
open the RO faucet to empty the storage tank (Save a few ounces of RO water). Once the
storage tank is empty, remove the membrane and place it in a sealed plastic bag with the RO
water saved earlier and store in your refrigerator.
For restart, reinstall membrane and follow startup procedure on page 11.
Check air pressure only when tank is empty of water!
Step 1 Turn off the incoming water supply to the RO by turning the needle
valve on the adapt-a-valve clockwise until it stops. (Follow the green
tube away from the RO system to find the adapt-a-valve.)
Open the RO Faucet and allow water to drain from the tank until it is
completely empty.
Step 2
Check air pressure in the storage tank when you notice a decrease in available water from
the RO system. Air can be added with a bicycle pump using the schrader valve that is
located on the lower side of the tank behind the blue plastic twist off cap.
Tip: When water from the RO faucet slows to a trickle, with the faucet still in the open
position, you may add air to the tank to purge any left over water, this will ensure that
the tank is completely empty.

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 4-6 hours to fill tank. Note: Low water
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
1-800-752-5582 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

Page 18
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
entering the system was reduced to a concentration less than or equal to the permissible limit for water leaving the system as specified 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% 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 - 30% Daily Production Rate - 10.60 GPD Efficiency - 11.6%
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 is available to the user as reverse osmosis treated water when the system is operated without a storage tank or when the storage
tank is bypassed. 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. System to be used with municipal or well water sources treated and tested on regular basis to insure bacteriological safe quality. 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: 100 psi (7.0kg/cm2) Minimum: 40 psi (2.8kg/cm2)
4. pH 2 to 11
5. Maximum iron present in incoming feed water supply must be less than 0.2 ppm.
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
 35 GPD Part# 110016 2 to 5 Years

Page 20
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