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PB4RO-75 Specifications

 

Your Water

 

Pressure Range:

 

40–100 psi

 

(2.8–6.9 bar)

 

Temperature Range:

 

40–100°F 

(4.4-37.8°C)

 

Total Dissolved Solids

 

< 2000 ppm

 

Maximum Hardness* 

:

 

10 gpg

 

(171 mg/L)

 

Sulfide, Iron and Manganese 

:

 

 

< 0.1

 

Chlorine in Water Supply:

 

< 2 ppm

 

Water Supply pH Limits:

 

 

3-11

 

Turbidity:

 

5 NTU Max.

 

Date of Purchase:

 

 

•  Hand or Elect

 

ric Drill 

•   P

 

•  2 Adjustable Wrenches 

•   D

 

•  File

 

•  T

 

•  Pencil

 

•  S

 

•  Needle-nose

 

Pliers 

•   T

 

•  Utility Knife or Tube Cutter

 

 

•  Hand or Electric D

 

rill 

•   C

 

•  Drill Bits: 1/4" and

 

3/4" 

•   R

 

•  Teflon

® 

Tape

 

•  1

 

 

•  Head Assembly

 

•  D

 

•  Screws for mounti

 

ng 

 

•  Lead-free air gap 

water faucet

 

drinking 

•   Q

 

 

•  Silicone grease

 

 

•  S

 

•  Tank Valve

 

•  F

 

•  Teflon

® 

Tape

 

•  C

 

•  3/8" Plastic Tubing 

•   1 

(red and blue) 

  (

 

 

•  TDS Test Kit

 

•  Filter Cartridges:

 

 

 

 

Model PB4RO-75 Undersink Reverse Osmosis System

 

User Manual

 

 

OPERATING SPECIFICATIONS  

 

WARNING: 

Before installing the system, make certain 

your water supply complies with the 
following operating specifications. Failure 
to do so may reduce the effectiveness

 

of the system and will void the warranty. 
Consult your local water treatment utility 
or a certified water testing lab to determine 
the quality for your water and use the table 
below to record your results for future 
reference.

 

Tools Required

 

 

 

 

 

 

 

 

 

 

(for plastic tubing)

 

 

Optional Materials

 

 

 

hillips Screwdrivers

 

rill Bits: 1/8", 1/4" and 3/8" 

owel

 

afety Glasses 

ape Measure

 

(For sinks without extra hole for faucet)

 

 

enter punch 

espirator

 

-3/8" Bi-metal or Carbide 

Tipped Hole-saw

 

 

NOTE: All tools listed will not be necessary for installation.

 

Read installation procedures before starting to 
determine required tools.

 

 

Parts Included

 

 

 

If the hardness of your water is above 10 gpg (171 mg/L), lime scale will build 

up rapidly on the membrane inside of the RO membrane cartridge. Scale 
buildup will plug the RO membrane cartridge and make the system ineffective. 
We do not recommend the PB4RO to be used with water in excess of 10 gpg 
(171 mg/L) hardness, unless the water is softened prior to the reverse 
osmosis

 

system.

 

 

† 

See your local dealer or water treatment specialist to reduce these substances 
in your water.

 

 

PB4RO-75 Dimensions:

 

System Dimensions 

13" H x 15" W x 4.75" Dia

 

(330 x 381 x 120.6 mm)

 

Tank Dimensions 

14.5" H x 11" Dia 
(368 x 279 mm)

 

System Weight 

23 lbs (10.4 kg)

 

Tank Capacity 

3.2 gal (12.1 L)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PW-S2500R Cartridge Yellow 
PW-C5000R Cartridge Blue 
PW-RO75R Cartridge Green 
PW-C2500R Cartridge Violet

 

 

rain Saddle Valve 

Water Supply Adapter 

uick-connect Fitting

 

 

torage Tank 

aucet Adapter

 

hange Indication Sticker

 

/4" Plastic Tubing 

white, red and green)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

247146 Rev D   JA12

 

Summary of Contents for PB4RO-75

Page 1: ...or future reference Tools Required for plastic tubing Optional Materials hillips Screwdrivers rill Bits 1 8 1 4 and 3 8 owel afety Glasses ape Measure For sinks without extra hole for faucet enter punch espirator 3 8 Bi metal or Carbide Tipped Hole saw NOTE All tools listed will not be necessary for installation Read installation procedures before starting to determine required tools Parts Include...

Page 2: ... than 2 to 3 days without being used the storage tank should be emptied NOTE Use only Teflon tape without adhesive backing to seal joints Do not use pipe compound pipe dope sticks or similar compounds with this unit they contain petroleum derivatives which can cause crazing and cracking of the plastic in the filter housing NOTE Use only soap and water to clean components NOTE Do not use aerosol sp...

Page 3: ...d to allow faucet base to rest securely The faucet fits through a 1 3 8 hole Most sinks have pre drilled 1 3 8 or 1 1 2 diameter holes that may be used for faucet installation If these pre drilled holes cannot be used or are in an inconvenient location it will be necessary to drill a 1 3 8 hole in the sink to accommodate the faucet WARNING This proceduremaygeneratedust which can cause severe irrit...

Page 4: ...is tube should be long enough to reach the drain clamp in Step 7 Will Spring Open C Notch For Faucet Figure 4 45 Notch For Faucet Blades Must Be Held When Tightening E Locate the 1 4 red brine tube from the right side of the system head assembly Route the tube through the faucet base and connect to small barb on the faucet Make certain that the tube is not kinked or stressed once the head assembly...

Page 5: ...INSTALLATION continued Figure 3 Model PB4RO 75 Undersink Reverse Osmosis System JA12 5 ...

Page 6: ...e PB4RO 75 two screws are supplied to mount the head Measure up from the floor of the cabinet 14 1 2 This will provide clearance to change the cartridges The two screws will be 14 apart and level Screw the two screws into the wall Leave a gap between the screw head and the wall of 1 8 The backside of the system head has two slots that will fit over the screw heads and slide down to lock 14 Inches ...

Page 7: ...t fitting B Gently pull back on the tubing to ensure it is connected properly If the tubing comes out of fitting cut a small section off of the tubing and reconnect NOTE Tubing may be quickly and easily removed from the fitting if necessary First turn off the water supply to the filter Open faucet then press in the collet around the fitting while pulling the tubing with your other hand Step 8 A 3 ...

Page 8: ...amp from the drainpipe and enlarge the hole with a 3 8 drill bit Use a file to remove rough edges from the drilled hole D Make sure the black rubber gasket is adhered to the inside of the drain clamp and place the drain clamp assembly over the drilled hole Look through the hole and position the clamp so that the center of the clamp hole is slightly higher about 1 16 than the center of the drilled ...

Page 9: ...e place every 1 2 mon th s T EMPER A T U R E R AN G E 40 1 00 F 4 4 3 7 8 C PR ESSUR E RAN G E 30 1 25 F 2 4 8 6 Bar For u se with Pentair Wat er models PB4RO 75 PP4RO 75 and PB5RO 75 1 2 3 Figure 13 A Make sure cold water faucet is off Figure 14 B Make sure tank valve is in the open position C Slowly turn on cold water supply D Open the faucet to turn on flow Let the faucet run drip for 12 hours ...

Page 10: ......

Page 11: ...nk valve on top of storage tank C Turn off water to the system at the cold water supply D Open drinking water faucet to relieve pressure E Locate blue tubing leading to your drinking water faucet Cut and insert the 3 8 x 3 8 x 3 8 9 5 x 9 5 x 9 5 mm compression or quick connect tee into the blue tubing Figure 15 Consult manufacturer s guidelines before installing the tee connection NOTE When cutti...

Page 12: ...dge on the left side of the filter housing counter clockwise for a 1 4 of a turn and pull the cartridge out of the system If the system has any significant leaks see Troubleshooting C Push the new cartridge into the head until it can go no further D Twist the cartridge 1 4 turn clockwise until it snaps into place E Gently pull the cartridge straight out to ensure the cartridge is locked into place...

Page 13: ...F Repeat Step E four times Model PB4RO 75 Undersink Reverse Osmosis System JA12 ...

Page 14: ......

Page 15: ...tting 8 Turn water supply on at the saddle valve and close drinking water faucet 9 Allow system to pressurize for several hours and check for leaks 10 Check for leaks after tank is fully pressurized 1 3 hours If leak persists call Technical Support Leaks at Quick Connect Fittings CAUTION The 1 4 red tubing connected to the top of the fourth cartridge has a flow restrictor installed The system will...

Page 16: ...ing water faucet 5 Using an air pressure gauge adjust the pressure in the storage tank to 5 7 psi 6 Replace the blue cap 7 Open the saddle valve until it comes to a stop Let the system run 1 3 hours to fill the tank A full tank weighs approximately 33 pounds If performance has not improved call Technical Support Sudden Return of Taste and Odor If shortly after complete servicing noticeable taste a...

Page 17: ...G Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts NOTE Substances that may be reduced are not necessarily in your water Filter must be maintained according to manufacturer s instructions including replacement ...

Page 18: ...10 11 14 JA12 Model PB4RO 75 Undersink Reverse Osmosis System ...

Page 19: ...rom water very well 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 may not convert all the trivalent arsenic If you...

Page 20: ......

Page 21: ...ng is 27 40 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 PB4RO 75 Production Rate 24 83 gpd The PB4RO 75 is Tested and Certified by NSF International against NSF ANSI Standard 42 and 58 for the red...

Page 22: ...ltration LLC prior to the expiration of the warranty date at the customer s expense shipment pre paid 4 be accompanied by a letter detailing the Model Number Serial Number if any and a brief description of the problem TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW PENTAIR RESIDENTIAL FILTRATION LLC DISCLAIMS ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIE...

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