Pura QCUF User manual

Quick Change Ultrafiltration Drinking Water System
Installation, Operation & Service Instructions with Part List
Models: QCUF
www.pura.com

1
Safe Practices
Throughout this manual there are paragraphs set off by special headings.
NOTE: Note is used to emphasize installation, operation or maintenance information which is important, but does not
present any hazard. Example:
NOTE: The nipple must extend no more than 1 inch above the cover plate.
Caution!: Caution is used when failure to follow directions could result in damage to equipment or property. Example:
CAUTION! Disassembly while under water pressure can result in flooding.
WARNING!: Warning is used to indicate a hazard which could cause injury or death if ignored. Example:
WARNING! Electrical shock hazard! Unplug the unit before removing the timer mechanism or cover plates!
Serial Number
The serial number is located on the rear of the UF manifold housing. Record this number on the warranty page located at
the end of this manual.
NOTE: Do not remove or destroy the serial number. It must be referenced on requests for warranty repair or replacement.
This publication is based on information available when approved for printing. Continuing design refinement could cause
changes that may not be included in this publication.
WARNING! If incorrectly installed, operated or maintained, this product can cause severe injury. Those who
install, operate, or maintain this product should be trained in its proper use, warned of its dangers, and should
read the entire manual before attempting to install, operate or maintain this product.
Attention PURA Customer:
This system is intended for use on potable water supplies or disinfected water containing cysts. Do not use where water
is microbiologically unsafe or with water of unknown quality. If bacterial contamination is present, a recognized method
of water disinfection is required.
Check with your public works department for applicable local plumbing and sanitation codes. Follow your local codes if
they differ from the standards used in this manual.
The PURA Quick Change Drinking Water System contains a replaceable ultrafiltration membrane filter which is critical for
the effective reduction of Total Dissolved Solids. The filtered water should be tested periodically to verify that the system
is performing properly.
Serial Number Label
U - MM-DD-YY-XXXXXX
Date of
manufacture
Serial
Code
Data
Plate
Label Containing
Model #

2
Table of Contents Page
Specifications and Performance Data Sheet .................................................................. 3
Suggested Installation Equipment ............................................................................ 5
Overview of the PURA Quick Change UF System’s Components.................................................. 6
Package Contents......................................................................................... 7
Preparation............................................................................................... 8
Installation
Step 1 Select Component Installation Locations ............................................................10
Step 2 Faucet Installation................................................................................11
Step 3 Install Adapter Valve on Water Supply ..............................................................13
Step 4 Install Filter System Assembly .......................................................................14
Step 5 Start Up .........................................................................................15
Service and Maintenance ..................................................................................16
Parts Breakdown ..........................................................................................17
Troubleshooting ...........................................................................................19
Warranty Information.......................................................................................20
Quick Change Ultrafiltration Drinking Water System
Installation, Operation & Service Instructions with Part List

3
Specifications and Performance Data Sheet
Model # Part # Stage 1 Stage 2 Stage 3 Stage 4 Faucet
QCUF 1340201-60 Sediment Filter Sediment Filter Ultrafiltration
Membrane
Activated Carbon
Filter
Chrome
or Standard
Daily Production Rate L/day (G/day) . . . 2725.5 (720)
Efficiency Rating. . . . . . . . . . . . . . . . . . . . . 100%
Recovery Rating . . . . . . . . . . . . . . . . . . . . 100%
Typical System Flow Sequence . . . . . . . . Sediment Filter Sediment Filter Ultrafiltration Membrane 
Activated Carbon Postfilter Dispensing Faucet
Sediment Filter (Stage 1). . . . . . . . . . . . . . 5 Micron
Sediment Filter (Stage 2) . . . . . . . . . . . . . . 5 Micron
Ultrafiltration Membrane (Stage 3) . . . . . 0.2 Micron Ultrafine Filtration
Polishing Filter (Stage 4) . . . . . . . . . . . . . . Granular Activated Carbon or Carbon Block
15.8”
2.0”
4.7”
14.3”
2.5”
13.1”
Dimensions

4
NOTES
1. A softener is strongly recommended for water over 10 gpg hard.
Installing a system without a softener on water with hardness higher
than 10 gpg will reduce the life of the membrane.
2. Additional information on factors that affect UF performance can be
found in the “Performance & Technical Information” section.
Table 1
Recommended Influent Water Characteristic
Pressure 40 - 100 psi
Temperature 40 - 77 ºF
pH 5 - 10
Chlorine20 - 3 ppm (0 - 3 mg/L)
Chloramine 0 - 3 ppm (0 - 3 mg/L)
Turbidity 0 - 10 NTU
Hardness30 - 10 gpg
Iron 0 - 1 ppm (0 - 1 mg/L)
Bacterial Quality Potable
Filter Cartridge Specifications
* The performance and life of an ultrafiltration membrane or filter element is highly dependent upon pressure, temperature and water quality.
Part # Purpose
Micron
Rating Capacity Flow Rate
Working
Temperature
Range
Working
Pressure Range
Rated
Life* STAGE
Sediment Filter 41407001 Sediment Reduction 5 2000 gallons
(7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi) 6 Months 1
Carbon Block
Filter 41407002 Chlorine Taste and Odor 5 2000 gallons (7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi) 6 Months 2 or 4
Carbon Block
Filter - 50 Micron 41407006 Chlorine Taste and Odor 50 2000 gallons (7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi) 6 Months 2
GAC Carbon
Filter 41407004 Polishing - Taste and Odor – 2000 gallons (7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi)
6 to 12
Months 4
pH Booster
Filter Cartridge 41407007
Raise pH of water and
removal of chlorine, taste
and odor
–750 gallons
(2835 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi)
6 to 12
Months 4
UF (Hollow Fi-
ber) Membrane 41407005 Ultra Fine Filtration 0.2 2000 gallons (7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi) 12 Months 3
Carbon Block –
1 Mic Filter 41407009 Chlorine Taste and Odor, Particulate Reduction 1750 gallons (2835 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi)
6 to 12
Months
2
or 4
Scale Reduction 41407010 Scale Reduction – 2000 gallons
(7570 liters)
0.5 gal/min
(1.9 liters/min)
4-38° C
(40-100° F)
207-689 kPa
(30-100 psi) 6 Months 1 or 2

5
Suggested Installation Equipment
Recommended Tools
1. Utility Knife
2. Flathead Screwdriver
3. Phillips Screwdriver
4. Center Punch
5. 7/8” Stepped Drill Bit
6. Finish Hole Saw
7. Porcelain Saw
8. 1/8” & 3/8” Drill Bits
9. Heavy Duty Drill
10. Work Light
11. 2 Adjustable Wrenches
12. Pressure Gauge
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12
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11
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10
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1
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2
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5
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6
7
8
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3
4
Figure 1

6
Overview of the PURA Quick Change UF System’s Components
Manifold Assembly
The manifold assembly serves as the functional hub of the PURA
system by directing the flow through each of the system’s main
components.
Sediment Prefilters
The sediment prefilters screen out particulate material, such as dirt,
sand, or rust, which may clog the ultrafiltration membrane.
Ultrafiltration Membrane
The Ultrafiltration Membrane (3) mechanically removes microscopic
impurities. It consists of a semipermeable membrane wound around a
perforated tube. Product water diffuses through the membrane while
impurities become trapped in the membrane.
The UF membrane featured in the PURA system offers exceptional
contaminant adsorption, application versatility, and long life.
The sediment prefilters must be maintained properly to prevent
clogging and premature failure of the UF membrane.
NOTE: This preservative must be flushed from membrane before use.
If ingested it may cause irritation of the gastrointestinal tract, colic,
diarrhea, or other similar symptoms. The manufacturer recommends
discarding all the product water for at least one hour of operation
before drinking or use in food preparations. WaterGroup highly
recommends discarding the product water for a full 24 hours to
flush the preservative and to properly hydrate the membrane for
maximum performance.
Activated Carbon Polishing Filter
The activated carbon polishing filter (4) adsorbs any residual tastes and odors just before the water is delivered through
the faucet.
Dispenser Faucet
The PURA faucet (5) allows the product water to be drawn from the system with a simple rotation of the handle.
NOTE: Cleanliness is essential in the Preparation procedure. Be sure to wash your hands thoroughly before handling
filters. The use of surgical gloves is strongly recommended.
Figure 2

7
1. UF Manifold
2. Sediment Filter
3. Sediment Filter
4. Ultrafilter Membrane
5. Carbon Block Filter
6. Faucet and Hardware
7. Piercing Saddle Valve
8. Locking Clip (3/8”)
9. 3/8” Elbow
10. Faucet Adapter
11. Locking Clip (1/4”)
12. 1/4” Elbow
13. 4X #10 Phillips Self Tapping Screws
14. 1/4” Tubing (4 ft. White)
15. 3/8” Tubing (4 ft. Blue)
16. Installation Template Sheet 11X17
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13
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14
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15
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16
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11
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10
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1
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2
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5
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6
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7
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9
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3
4
Figure 3
Package Contents
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8

8
Tubing Connectors
The PURA system features reliable and convenient push-to-connect tubing connectors. Tubing is easily connected and
disconnected from these fittings as follows.
Connect:
Cut the tubing squarely with a sharp knife. Be careful not to crush the tubing. To
avoid leaks, make sure the tubing end is smooth and free of burrs and abrasions.
Lubricate the end of the tube with water or a light coat of silicone and push
the tube end firmly into the fitting. You should feel it push past the O-ring. Avoid
bending the tubing sharply away from the fitting.
Disconnect:
Hold the collar against the fitting body and pull the tube from the fitting.
In the unlikely event that the connection leaks, remove and recut the tubing.
Check the inside of the fitting for debris or O-ring damage. Reconnect.
Push-to-connect tubing connectors grip the outside diameter of the tube. To
help assure a reliable connection, it is important to use high quality tubing with a
consistent outside diameter.
Quick-Connect Fitting
Insertion & Removal of Plastic or
Copper Tubing
1. Simply
push in
tube to
attach.
2. Tube is secured in position. 3. Push in collet from both sides to
release tubing.
Preparation
Figure 4
1. Cut tube squarely with a sharp knife.
This manual covers the technical aspects of PURA Quick Change drinking water systems. It is important to read this manual
thoroughly so that you can properly apply, install, and service these systems.
The substances reduced by this system are not necessarily in the customer’s untreated water.
Warranty
A limited warranty is extended to the original end user from WaterGroup. This warranty is printed on the back cover of the
Owner’s Guide.
Application Guidelines
The PURA system is designed for use on potable water supplies meeting the guidelines outlined in Table 1. The system
should be installed on a home’s cold water line. The flushing stream should discharge through an approved siphon break.
Installation of this system must comply with state and local laws and regulations.
Package Content
The PURA system is shipped from the factory in carton:
NOTE: The filter elements are shipped in their own sealed packaging. This will help to simplify preparation of the system
and to maximize the shelf life of the UF membrane element.
Product Information

9
Figure 7
The exact placement of the components will vary by installation. Although shown beneath a sink, it may be installed
in a basement, crawl space, or in an adjacent cabinet. Regardless of where the system is installed, the flow sequence
described by (figure 7) must be observed.
The PURA drinking water system is designed to be mounted near a sink for easy access to cold water. Lengths of 1/4-inch
and 3/8-inch OD plastic tubing will be required to make this installation.
Evaluate the installation site to determine the easiest path for the plumbing to follow. Take care to make the installation as
neat as possible.
Installation
Pura Faucet
UF Manifold
1/4” Feed Line (White)
Cold Water Supply
3/8” Product
Water Line (Blue)
The additional Point of use connection
(Icemakers etc) can be tapped from
here with the use of reducing Quick
Connect Tee (14” X 3/8” X 3/8”)
(Part # PP30121208W).
STEP 2
STEP 3
STEP 4

10
The following steps will enable you to install the system quickly and orderly. Some variation may be necessary depending
on the installation. See page 4 for a check list of tools and materials.
Typical installations follow this sequence:
1. Select Component Installation Locations
2. Faucet Installation
3. Install Adapter Valve on Water Supply
4. Install Filter System Assembly
5. Start-Up
Step 1 – Select Component Installation Locations
• Dispenser Faucet – The faucet is designed to be mounted on the rear lip of the sink. It may be installed in an existing
sprayer attachment hole or in a hole drilled at the time of installation. It may also be mounted to an adjacent counter
top. It should be positioned so that water is dispensed over the sink. A 7/8” diameter hole is required.
• Important considerations:
• Access to the bottom (undersink) of the faucet is required for attachment of product water line.
• There should be no undersink obstructions which would prevent smooth tubing runs to the drain connection, or UF
module assembly.
• Filter System Assembly – The filter system assembly is designed to be mounted on any rigid vertical surface such as a
cabinet sidewall, sheetrock in exposed stud. It should be positioned such that there is access to an inlet water source
and drain. The installation should also allow convenient access for servicing.
• Inlet Water Supply Connection – Once a location is chosen for installation of the filter system assembly, select a nearby
cold water line to provide the water source for the system.
NOTE: Follow all local plumbing codes when connecting to service water.

11
Step 2 – Faucet Installation
To simplify its access and installation, we suggest you install the faucet on the rear lip of the sink. It should be evenly
positioned with the sink faucet and spray attachment. Should the spray faucet hole not be available for the installation,
the sink must be drilled.
NOTE: It is recommended retaining the services of a professional counter top craft person when a hole is needed in
granite or other specialty counter top materials.
Sink Drilling Instructions
Stainless Steel Sink
Porcelain Enamel Sink
Follow these basic guidelines when drilling a porcelain sink:
One proven tool is the Relton porcelain cutter kit when used with a slow speed drill (300-400 rpm).
• Drill a pilot hole through the porcelain and base material with the carbide tip drill.
• Build a putty dam around the drill area. Add enough water to lubricate cutters and reduce cutting noise.
• Insert the porcelain cutter into the drill. Place the drill tip in the pilot hole. Check for free movement.
• Apply light pressure to the cutter tool and start the drill motor at low speed (300-400 rpm). When the initial cut has
been made in the porcelain, speed may be increased. After a complete ring has been cut through the porcelain,
change over to the metal cutter. Avoid contacting the outer rim of cut porcelain when drilling.
CAUTION! Avoid high drill speed during penetration of porcelain. A single speed drill can be used at a slow
speed by switching it on and off quickly.
• Use a slow speed and light pressure to cut away the porcelain.
• Stop when you reach the metal under the porcelain. Remove the cutter and clean the porcelain chips from the
surface. Continue cutting through the metal.
NOTE: Ceramic tile counters should be treated like porcelain when penetrating the surface, then treated as metal to
complete the hole with carbide drills. Formica countertops can be drilled with a high-speed wood drill.
Pilot Drill Spring Loaded Porcelain Saw Finish Hole Saw
Penetrate the porcelain to the base
material.
Protect the surrounding porcelain
material.
Use the appropriate tool to drill the
base material.
1. Select and mark the
proper faucet location.
2. Center punch hole to
provide a starting point
for your drill.
3. Drill a 7/8” hole in the sink using a stepped 7/8” drill
bit. If no stepped bit is available, start by drilling
a 1/4” hole. Using this hole as a starting point
progressively drill larger holes. Increase drill size by
1/8” until you reach a 7/8” hole.

12
Faucet
Base
(Remove white protective film)
Plastic Washer
Large Rubber Washer
Small Rubber Washer
Nut
Faucet Adapter
Lock Washer
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1
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3
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5
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6
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7
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8
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2
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4
Standard Faucet Installation
1. Remove white protective film from faucet base. Install faucet body, small rubber washer, metal base, and large rubber
washer above sink (items 1-4).
2. Install plastic washer, lock washer and nut (items 5-7) onto faucet stem below sink and tighten. Be sure to properly align
the faucet.
3. Install the faucet adapter (item 8). Connect the 3/8" blue tubing to the faucet adapter.
NOTE: Make certain that the tubing is all the way into the fitting; once inserted pull lightly to make sure it is
locked in place.
Standard Faucet
Drinking Water Line to Faucet
(3/8” Blue Tubing)

13
Step 3 – Install Adapter Valve on Water Supply
CAUTION! If no shut off valve is installed under
sink, close main water valve. Do not install feed
water assembly on hot water line.
2. Hold saddle valve
against pipe.
3. Slide back plate into
position.
• Use small radius side for
3/8”copper pipe.
• Use large radius side for
1/2”copper pipe.
4. Tighten screw firmly so
saddle valve is held
securely in place. Do not
crush tube.
5. Connect feed tubing to
valve body using com-
pression fitting.
• Slide nut and plastic sleeve
onto tubing.
• Install insert into plastic
tubing.
• Slide into valve body and
tighten nut securely.
NOTE: Do not use brass
sleeve on plastic tubing.
OK NO!
1. Locate shut off valves on water lines under sink. To iden-
tify hot & cold supply pipes, turn on both faucets and let
water run. Hot water pipe will be the warmer pipe. Turn
off cold water supply valve. Open sink faucet to drain
line. Some mixing faucets may require shutting off the hot
water valve as well.
7. Once all lines are connected to the UF system turn on
cold water supply. Turn Valve counter-clockwise and
check for any leaks. Run water from the faucet to clear
any debris caused by installation.
NOTE: If flow from sink faucet is reduced, clean faucet aerator.
6. Turn handle clockwise until
firmly seated and piercing
valve has extended fully.
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1
CAUTION! Do not turn valve handle before or
during installation of saddle valve. Be sure piercing
lance does not protrude prior to installing valve.
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6
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2
3
4
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5
Insert
Plastic Sleeve
Nut
1/4” Tubing

14
Step 4 – Install Filter System Assembly
The mounting bracket contains four mounting slots. The holes are sized to accept #10 round head wood screws (supplied).
Some types of surfaces such as particle board or drywall, may require the use of plastic screw anchors or toggle bolts to
provide adequate support for the unit.
1. Tape the paper template included with this unit to the wall with the base of the template on the bottom of the cabinet
(or higher). Be sure to leave adequate space (8 1/2” or more from the centerline) on both sides of the template.
2. Drill 1/8” hole at each location as indicated on the template.
3. Remove template. Thread one of the included wood screws into each hole leaving approximately a 1/2” space
between the screw head and mounting surface.
4. Hang the bracket on the mounting screws. If unit is loose, tighten the screws further.
Install Filter Cartridges
1. Twist the cartridge to lock it into the manifold. (as shown)
Connect System
When cutting plastic tubing, use a sharp utility knife. Cut the tubing squarely. See page 7 for cutting and connecting tubing.
2. Connect 1/4-inch OD white plastic
tubing from the feed water supply
source to the system inlet on the
manifold.
1. Connect quick connect elbows
to the three open connection
locations on the unit. Firmly push
the fittings into place, then pull
back lightly to lock them in.
3. Connect 3/8-inch OD blue plastic
tubing from the product water
faucet to the manifold.
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3
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2
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1
White Blue
Stage 1
Sediment Filter
Stage 2
Sediment Filter
Stage 3
Ultrafiltration
Membrane
Stage 4
Carbon Block
Filter
Figure 15
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2 3
4
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1
12"

15
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4
Step 5 – Start-Up
1. Check system to verify all components are correctly installed
2. Open inlet valve and tank valve.
3. Check system thoroughly for leaks. If any are found, shut off both inlet and tank valves and correct the issue.
4. Open faucet to flush carbon fines & sanitization solution. After allowing the system to run for 20 minutes turn
off the faucet
5. System is ready to use
WARNING! Do not drink water produced by the system until the start-up procedure has been
followed completely!
4. Attach locking clips to each white
elbow fitting. Clips should slide in
behind collet on the fittings.

16
Service Schedule
To keep the PURA system operating properly, it is necessary to change the filters and sanitize the system periodically.
Typically, this should be done on an annual basis. Service frequency may vary depending on local water conditions. High
sediment, chlorine, turbidity, or hardness levels may require more frequent service. Use the following as a guide.
As needed
Clean the faucet with a soft cloth, avoid abrasive cleaners.
At least once in 6 months
Replace
•Stage 1 and 2 Sediment Filters (41407001)
Rotate sediment filters 3 months after changing (swap stage 1 & stage 2)
At least once in 12 months
Replace
• Stage 3 Ultrafiltration Membrane (41407005)
• Stage 4 Carbon Block Filter (41407002)
Sanitize the system
Service and Maintenance

17
Parts Breakdown
# Item # Description Qty.
1 134040U Manifold, Quick Change Ultrafilter, 4 Stage 1
2 41407001 Cartridge, Quick Change Sediment Filter - Stage 1 & 2 2
3 41407002 Cartridge, Quick Change Carbon Block - Stage 4 1
4 41407005 Cartridge, Quick Change Ultrafiltration Membrane - Stage 3 1
5 33501064 Elbow,1/4” Stem 1
6 33501071 Elbow,3/8” Stem 1
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4
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6
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5
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3
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2
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2

18
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8
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9
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5
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11 
12
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14
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1
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6
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2
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4
Other Parts
1. Faucet & Hardware – Part # 92192
2. Piercing Valve - Part # 92276
3. Locking Clip (3/8") – Part # 92346
4. Faucet Adapter – Part # 92652
5. Locking Clip (1/4") – Part # 92345
6. 4x #10 Phillips Self Tapping Screws
7. 1/4" Tubing
(4ft White – Part # 115200)
8. 3/8" Tubing
4ft Blue – Part # 87600)
9 O-ring, Small – Part # 41407554
10. O-ring, Medium – Part # 41407555
11. Replacement Filter Head – Part # 92804
12. Compact Elbow – Part # 41407558
13. 1/4” Elbow – Part # PP0308W
14. 3/8” X 1/4” Stem Adapter –
Part # PP061208W
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3