Watts PWBWCAL3 User Manual

For Residential Applications

ES-WQ-PWBWCAL

Job Name

Job Location

Engineer

Approval

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Series PWBWCAL

Whole House Acidic Water
Neutralizing Systems

Connection Size: 1" (25mm)
Flow Rate: up to 15 gpm (56 lpm)

Watts Whole House System for increasing the pH of acidic water.

Series PWBWCAL acid neutralizing system are designed for
residential applications with intermittent flow rates up to 15 gal­lons per minute. They stop the corrosion of metal components
and fixtures within a plumbing system by neutralizing the acidic
nature of supply water that has a pH of less than 7. Periodic
backwashing of the media bed cleans it of captured impurities.

Features and Benefits

• Increases the pH of acidic water

• Eliminates the corrosion of plumbing and fixtures caused by

low pH water

• No more “green stain” copper deposits in tubs, toilets, and

sinks

• Better tasting pH balanced water

• User-friendly equipment

• 10” diameter tanks and larger have a dome hole access port

on the top for checking and adding media

• Low maintenance due to automatic operation

Media

These systems use a high quality granular calcite (calcium car­bonate) media to accomplish the neutralization process. As low
pH water flows down through the media bed it reacts with the
calcite media and dissolves it. This causes the pH of the water
to move from an acidic state to a neutral state. This dissolving

of the calcite media will require calcite to be added to the bed

over time.

Pro SE Series Control Valve

The Pro SE Series control valve has been engineered and

tested to withstand the equivalent of 27 years of uninterrupted

daily use. The proprietary design features a Teflon
ton that glides through a series of seals and spacers. This seal/
spacer and piston configuration is the most reliable design in
control valve technology. The valve features an electronic con­troller for easy programming.

Filter Tank

Features a fiberglass tank with a thermoplastic inner liner. The

tanks are NSF/ANSI Standard 44 or 61 certified.

®

coated pis-

Contractor

Approval

Contractor’s P.O. No.

Representative

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PURE WATER

PWBWCAL

System Specifications

Minimum inlet pressure: 30 psig

Maximum operating pressure: 125 psig

Minimum water temperature: 34°F (1°C)

Maximum water temperature: 110°F (43°C)

Power

Voltage: 120VAC
Frequency: 60Hz

Power consumption: 7 Watts Maximum

Installation

Location: Indoors (Protect from direct sunlight)

Minimum ambient temperature: 34°F (1°C)

Maximum ambient temperature: 122°F (49°C)

Note: Do not use with water that is microbiologically unsafe or

of unknown quality without adequate disinfection before or after

the system.

®

Teflon

is a registered trademark of E. I. du Pont de Nemours

and Company or its affiliates.

Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with­out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

MODEL NO. VaLVE MiNEraL TaNk

SizE

MEDia CubiC FOOT GraVEL

(LbS)

PEak SErViCE

FLOw (GPM)*

PrESSurE DrOP baCk waSh

(GPM)

FLOOr SPaCE

L X w X h

PWBWCAL1 Time Clock 9" X 48" 1 10 5 <15 7 16" X 10" X 55"
PWBWCAL15 Time Clock 10" X 54" 1.5 10 7 <15 7 16" X 11" X 62"
PWBWCAL2 Time Clock 12" X 52" 2 30 10 <15 10 17" X 13" X 60"
PWBWCAL3 Time Clock 13" X 65" 3 40 15 <15 15 18" X 14" X 74"

*Note: Peak service flow rate is for intermittent use only and is not to be interpreted as continuous service flow rate capability. These systems are designed to treat the domestic water
used in a single family dwelling. For irrigation water treatment or higher volume applications please contact your Watts representative. Peak service flow rates are based on a 15 psi drop.

Optimum service flow rate is specific to water chemistry and will vary.

D

a

C

E

b

Side View Back View

Dimensions — Weights

MODEL NO. TaNk iN OuT OVEraLL hEiGhT OVEraLL DEPTh ShiPPiNG wEiGhT

a & b E E C D

PWBWCAL1 9" X 48" 50" 50" 56" 14" 125 57
PWBWCAL15 10" X 54" 56" 56" 63" 14" 170 77
PWBWCAL2 12" X 52" 54" 54" 61" 15" 245 111
PWBWCAL3 13" X 65" 67" 67" 73" 15" 348 158

lbs. kgs.

A Watts Water Technologies Company

USA: Tel. [phone] • www.watts.com

Canada: Tel. [phone] • www.watts.ca

ES-WQ-PWBWCAL 1225 © 2012 Watts