Pentair PB5RO-75 User Manual Download Page 1

Model PB5RO-75 Undersink Reverse Osmosis System

User Manual

 

247181 Rev D   JA12

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 of your water and use the table below 

to record your results for future reference.

PB5RO-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:

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 PB5RO 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.

PB5RO-75 Dimensions:

System Dimensions 

13" H x 18.6" W x 4.75" D 

   

 

 

(330 x 3472 x 120.6 mm)

Tank Dimensions  

14.5" H x 11" Dia

   

 

 

(368 x 279 mm)

System Weight   

29 lbs (10.4 kg)

Tank Capacity 

 

3.2 gal (12.1 L)

Tools Required

• 

Hand or Electric Drill

•  Phillips Screwdrivers

• 

2 Adjustable Wrenches

•  Drill Bits: 1/8", 1/4" and 3/8"

• 

File

•  Towel

• 

Pencil

• 

Safety Glasses

• 

Needle-nose Pliers

• 

Tape Measure

• 

Utility Knife or Tube Cutter 

(for plastic tubing)

Optional Materials

(For sinks without extra hole for faucet)

• 

Hand or Electric Drill

• 

Center punch

• 

Drill Bits: 1/4" and 3/4" 

• 

Respirator

•  Teflon

®

 Tape

• 

1-3/8" 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

• 

Head Assembly

• 

Drain Saddle Valve

•  Screws for mounting

• 

Water Supply Adapter

•  Lead-free air gap drinking 

water faucet

•  Quick-connect Fitting

• 

Silicone grease

•  Storage Tank

•  Tank Valve

• 

Faucet Adapter

•  Teflon

®

 Tape

•  Change Indication Sticker

• 

3/8" Plastic Tubing  

(red and blue)

• 

1/4" Plastic Tubing  

(white, red and green)

• 

TDS Test Kit

• 

Filter Cartridges: 

PW-S2500R Cartridge Yellow

 

PW-C5000R Cartridge Blue 

PW-RO75R Cartridge Green 

PW-C2500R Cartridge Violet

Summary of Contents for PB5RO-75

Page 1: ...ater is softened prior to the reverse osmosis system See your local dealer or water treatment specialist to reduce these substances in your water PB5RO 75 Dimensions System Dimensions 13 H x 18 6 W x...

Page 2: ...ore 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 compou...

Page 3: ...t 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 use...

Page 4: ...Screw quick connector onto end of threads G Wet end of 3 8 blue tube Push into bottom of connector Tug gently to be sure connection is complete This tube should be long enough to reach the top right s...

Page 5: ...sten the end of the tubing with water and insert into the quick connect fitting on the head assembly until the mark is flush with the quick connect fitting B Gently pull back on the tubing to ensure i...

Page 6: ...nd 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 clam...

Page 7: ...fitting NOTE Do not cut green tube This line should be left at the pre cut length for future service NOTE The pressurized storage tank has capacity of 3 2 gallons The tank s air pressure is factory se...

Page 8: ...experience some water leakage F Using a length of 3 8 polyethylene tubing connect the icemaker dispenser line with the free port on the compression tee G The shut off valve should be installed as clos...

Page 9: ...present seeTROUBLESHOOTING F Repeat Step E four times TROUBLESHOOTING Leaks on Supply Adapter Connection 1 Turn off water supply valve and turn on drinking water faucet to release pressure in system...

Page 10: ...re filter cartridge according to the changing the filter cartridge instructions and recheck the brine or reject flow rate 2 If the pre filter cartridge is not at fault the brine or reject flow control...

Page 11: ...6 244876 Kit Faucet 1 244857 Faucet Air Gap Paragon includes toggles 1 244783 Valve RO Tank 1 4 NPT x 1 4 QC 1 247117 Label Water Change Reminder 2 1 459 00 Mounting Screw 2 143495 Lubricant Silicone...

Page 12: ...om 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...

Page 13: ...approximate typical daily usage The tested recovery rating 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 r...

Page 14: ...urbidity Arsenic pentavalent 1 Barium Cadmium Chromium hexalent Chromium trivalent Copper Fluoride Lead Radium 226 228 Selenium None Microbiological Contaminants and Turbidity Inorganic Radiological C...

Page 15: ...with an RGA number 2 include proof of the purchase date of the product or part 3 returned to Pentair Residential Filtration LLC prior to the expiration of the warranty date at the customer s expense s...

Page 16: ...Buyer Seller Date 5730 North Glen Park Road Milwaukee WI 53209 Technical Support 800 279 9404 www pentairaqua com pro 2012 Pentair Residential Filtration LLC 247181 Rev D JA12...

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