This document provides information on various water softener models, including their specifications. It discusses how water softeners work by exchanging hardness ions for sodium ions using resin and salt regeneration. The models vary in size, flow rates, and controls. They are suitable for residential and commercial use and remove scale-forming hardness minerals from water.

1. MODELS
MICROPROCESSOR
LITRES SOFT WATER BETWEEN
REGENERATIONS*,
INSTALLATION AREA (w x d x h cm)
FLOW
Litres/
minute
INLET/
OUTLET
mm
DRAIN
mm
WTWSC7B 9,660 35 x 60 x 1200 20.0 20 12
WTWSC9B 15,180 35 x 60 x 1200 30.0 20 12
Minimum inlet pressure 280 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge (e.g. tank filling), use a switch kit & solenoid valve to
provide back-pressure when softener is regenerating. Refer Dowdens for pricing. Regeneration figures based on 100mg/l hardness. Flow based on intermittent usage.
Water Softeners
Removal of scale-forming hardness minerals
CABINET - ECONOMY MODEL
Autotrol Valve
The principal hardness minerals, calcium and magnesium, accumulate as a white scale in
piping, jugs, heat exchangers, water heaters, boilers and steam equipment. Removing
the scale delivers better use of energy, lower running costs and maintenance, improved
laundry and dishwashing and protection for water-contact appliances. The compact size
of cabinet softeners make them ideal for apartments, laboratories, under bench
installations or where space is limited.
ECONOMICAL RESIDENTIAL AUTOMATIC CABINET
STYLE WATER SOFTENERS FOR POTABLE & PROCESS WATERS
PROCESS
A softener ‘exchanges’ hardness ions for harmless sodium ions, leaving soft water. A
special softener resin is the exchange medium and softener salt the regenerant.
When the resin becomes laden with hardness ions the softener regenerates using a
salt water solution, (sodium chloride + water). The intensity of the sodium
introduced dislodges and displaces the hardness ions with sodium ions. The
hardness and chloride ions are sent to the drain. When the process is complete the
softener is regenerated and ready again to deliver soft water.
The softener cabinet acts as the storage tank for the salt
and water (brine). All functions are fully automatic with
only a periodic top-up of salt required.
Microprocessor Demand: This is the most efficient
and popular softener control. It features an in-built water
meter that monitors actual water flow and usage patterns
and initiates a regeneration only when required. Saves salt,
water and money.
Uses safe 12 volt power from the wall-mounted transformer supplied.
360 VALVE
CABINET WITH OPTIONAL HIGH STYLE COVER SHOWN.
CABINET & COVER MAY VARY SUBJECT TO AVAILABILITY

2. MODELS
AUTO DEMAND
LITRES SOFT WATER BETWEEN
REGENERATIONS*,
INSTALLATION AREA (w x d x h cm)
FLOW
Litres/minute
INLET/
OUTLET mm
DRAIN
mm
WTWSC7 9,660 35 x 60 x 1200 20.0 25 12
WTWSC9 15,180 35 x 60 x 1200 30.0 25 12
WTWSC10 19,320 35 x 60 x 1200 38.0 25 12
PROCESS
A softener ‘exchanges’ hardness ions for harmless sodium ions, leaving soft water. A
special softener resin is the exchange medium and softener salt the regenerant. When
the resin becomes laden with hardness ions the softener regenerates using a salt water
Solution (sodium chloride + water). The intensity of the sodium introduced dislodges and
displaces the hardness ions with sodium ions. The hardness and chloride ions are sent to
the drain. When the process is complete the softener is
regenerated and ready again to deliver soft water. The
softener cabinet acts as the storage tank for the salt and water
(brine). All functions are fully automatic with only a periodic
top-up of salt required.
Minimum inlet pressure 280 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge (e.g. tank filling), use a switch kit & solenoid valve to
provide back-pressure when softener is regenerating. Refer Dowdens for pricing. Regeneration figures based on 100mg/l hardness. Flow based on intermittent usage.
Water Softeners
Removal of scale-forming hardness minerals
CABINET STYLE
Clack Valve
VALVE AND CONTROL
The Clack Softener Valve features a versatile multi-function control that enables
programming to either Timer or Water-Meter Demand Regeneration. Demand
Regeneration is the most efficient and popular softening method. An in-built water meter
monitors the actual water flow and usage patterns and initiates a regeneration only
when required. This offers significant salt and water savings over timer regeneration
softeners. The control includes a Coin Cell Lithium battery back-up with an 8 hour carry
over to save day and time settings in event of blackout.
The control uses safe 12 volt power from the wall-mount transformer supplied.
RESIDENTIAL AUTOMATIC CABINET STYLE
WATER SOFTENERS FOR POTABLE & PROCESS WATERS
The principal hardness minerals, calcium and magnesium, accumulate as a white scale in piping, jugs, heat exchangers,
water heaters, boilers and steam equipment. Removing the scale delivers better use of energy, lower running costs
and maintenance, improved laundry and dishwashing and protection for water-contact appliances. The compact size of
cabinet softeners make them ideal for apartments, laboratories, under bench installations or where space is limited.
CLACK VALVE & CONTROL

3. LITRES SOFT WATER BETWEEN
REGENERATIONS*,
INSTALLATION AREA (w x d x h cm)
FLOW
Litres/minute
INLET/
OUTLET mm
DRAIN
mm
MODELS
AUTO DEMAND AUTO TIMER
WTWSC7M WTWSC7T 9,660 35 x 60 x 1200 20.0 25 12
WTWSC9M WTWSC9T 15,180 35 x 60 x 1200 30.0 25 12
WTWSC10M WTWSC10T 19,320 35 x 60 x 1200 38.0 25 12
PROCESS
A softener ‘exchanges’ hardness ions for harmless sodium ions, leaving soft water. A
special softener resin is the exchange medium and softener salt the regenerant.
When the resin becomes laden with hardness ions the softener regenerates using a
salt water solution, (sodium chloride + water). The intensity of the sodium
introduced dislodges and displaces the hardness ions with sodium ions. The
hardness and chloride ions are sent to the drain. When the process is complete the
softener is regenerated and ready again to deliver soft
water.
The softener cabinet acts as the storage tank for the salt
and water (brine). All functions are fully automatic with
only a periodic top-up of salt required.
Minimum inlet pressure 280 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge (e.g. tank filling), use a switch kit & solenoid valve to
provide back-pressure when softener is regenerating. Refer Dowdens for pricing. Regeneration figures based on 100mg/l hardness. Flow based on intermittent usage.
Water Softeners
Removal of scale-forming hardness minerals
CABINET MODELS
Autotrol Valve
CONTROL OPTIONS:
Timer: The softener capacity is calculated from the water hardness and the quantity
of softener resin used. Based on the calculated capacity and the estimated water
usage, the softener is programmed to automatically regenerate on the required days.
Microprocessor Demand: This is the most efficient and popular softener control. It
features an in-built water meter that monitors actual water flow and usage patterns
and initiates a regeneration only when required. Saves salt, water and money
compared to timer controlled softeners.
Both models use safe 12 volt power from the wall-mount transformer supplied.
RESIDENTIAL & LIGHT COMMERCIAL AUTOMATIC CABINET STYLE WATER
SOFTENERS FOR POTABLE & PROCESS WATERS
The principal hardness minerals, calcium and magnesium, accumulate as a white scale in piping, jugs, heat exchangers,
water heaters, boilers and steam equipment. Removing the scale delivers better use of energy, lower running costs and
maintenance, improved laundry and dishwashing and protection for water-contact appliances. The compact size of
cabinet softeners make them ideal for apartments, laboratories, under bench installations or where space is limited.
Valve & Control

4. AUTO TIMER
MODELS
AUTO DEMAND
MODELS
TANK SIZE DIA x HEIGHT, LITRES RESIN, LITRES SOFT WATER
BETWEEN REGENERATIONS, FLOW LPM*
INLET/
OUTLET
DRAIN
WTWS9T WTWS9M 229mm x 1220mm 28L 19,320L 38.0 LPM 25mm 12mm
WTWS10T WTWS10M 254mm x 1370mm 42L 28,980L 56.0 LPM 25mm 12mm
WTWS12T WTWS12M 305mm x 1320mm 56L 38,640L 75.0 LPM 25mm 12mm
WTWS13T WTWS13M 330mm x 1370mm 70L 48,300L 95.0 LPM 25mm 12mm
WTWS14T WTWS14M 355mm x 1650mm 100L 69,000L 95.0 LPM 25mm 12mm
Minimum inlet pressure 280 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge (e.g. tank filling), use a switch kit & solenoid valve to
provide back-pressure when softener is regenerating. Refer Dowdens for pricing. Regeneration figures based on 100mg/l hardness. Flow based on *Intermittent usage.
Water Softeners
Removal of scale-forming hardness minerals
PROCESS
A softener ‘exchanges’ hardness ions for harmless sodium ions, leaving soft water.
A special softener resin is the exchange medium and softener salt the regenerant.
When the resin becomes laden with hardness ions the softener regenerates using a
salt water solution, (sodium chloride + water). The intensity of the sodium
introduced dislodges and displaces the hardness ions with sodium ions. The
hardness and chloride ions are sent to the drain. When the process is complete the
softener is regenerated and ready again to deliver soft water. Twin Tank softeners
comprise a large capacity salt storage tank and tall resin tank for increased void
space for efficient backwash and brining. All functions are fully automatic with only
a periodic top-up of salt required.
CONTROL OPTIONS:
Timer: The softener capacity is calculated from the water hardness and the
quantity of softener resin used. Based on the calculated capacity and the estimated
water usage, the softener is programmed to automatically regenerate on the
required days.
Microprocessor Demand: This is the most efficient and popular softener control. It
features an in-built water meter that monitors actual water flow and usage
patterns and initiates a regeneration only when required. Saves salt, water and
money compared to timer controlled softeners.
Both models use safe 12 volt power from the wall-mount transformer supplied.
TWIN TANK
Autotrol Valve
RESIDENTIAL & LIGHT COMMERCIAL AUTOMATIC TWIN TANK WATER
SOFTENERS FOR POTABLE & PROCESS WATERS
The principal hardness minerals, calcium and magnesium, accumulates as a white scale in piping, jugs, heat exchangers,
water heaters, boilers and steam equipment. Removing the scale delivers better use of energy, lower running costs and
maintenance, improved laundry and dishwashing and protection for water-contact appliances.

5. AUTO DEMAND MODELS TANK SIZE DIA x HEIGHT, LITRES RESIN, LITRES SOFT WATER
BETWEEN REGENERATIONS, FLOW LPM*
INLET/OUTLET
WTWS9 229mm x 1220mm 28L 19,320L 38.0 LPM 25mm
WTWS10 254mm x 1370mm 42L 28,980L 56.0 LPM 25mm
WTWS12 305mm x 1320mm 56L 38,640L 76.0 LPM 25mm
WTWS13 330mm x 1370mm 70L 48,300L 96.0 LPM 25mm
WTWS14 355mm x 1650mm 100L 69,000L 134.0 LPM 32mm
Minimum inlet pressure 280 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge (e.g. tank filling), use a NHWB (no
hard water bypass valve to provide back-pressure when softener is regenerating. Refer Dowdens for pricing. Regeneration figures based on
100mg/l hardness. Flow based on *Intermittent usage.
Water Softeners
Removal of scale-forming hardness minerals
PROCESS
A softener ‘exchanges’ hardness ions for harmless sodium ions, leaving soft water.
A special softener resin is the exchange medium and softener salt the regenerant.
When the resin becomes laden with hardness ions the softener regenerates using a
salt water solution, (sodium chloride + water). The intensity of the sodium
introduced dislodges and displaces the hardness ions with sodium ions. The
hardness and chloride ions are sent to the drain. When the process is complete the
softener is regenerated and ready again to deliver soft water. Twin Tank softeners
comprise a large capacity salt storage tank and tall resin tank for increased void
space for efficient backwash and brining. All functions are fully automatic with only
a periodic top-up of salt required.
VALVE AND CONTROL
The Clack Softener Valve features a versatile multi-function control that enables
programming to either Timer or Water-Meter Demand Regeneration. Demand
Regeneration is the most efficient and popular softening method. An in-built water
meter monitors the actual water flow and usage patterns and initiates a
regeneration only when required. This offers significant salt and water savings over
timer regeneration softeners. The control includes a Coin Cell Lithium battery
backup with an 8 hour carry over to save day and time settings in event of
blackout.
The control uses safe 12 volt power from the wall-mount transformer supplied.
TWIN TANK
Clack Valve
RESIDENTIAL & LIGHT COMMERCIAL AUTOMATIC TWIN TANK WATER
SOFTENERS FOR POTABLE & PROCESS WATERS
The principal hardness minerals, calcium and magnesium, accumulates as a white scale in piping, jugs, heat exchangers,
water heaters, boilers and steam equipment. Removing the scale delivers better use of energy, lower running costs and
maintenance, improved laundry and dishwashing and protection for water-contact appliances.
CLACK VALVE & CONTROL

6. C&I SERIES
Clack Valves
Water Softeners
Removal of scale-forming hardness minerals
THE PRINCIPAL SCALE-FORMING MINERALS, CALCIUM AND MAGNESIUM,
ACCUMULATE IN PIPING, HEAT EXCHANGERS, WATER HEATERS, BOILERS AND
STEAM EQUIPMENT RESULTING IN SIGNIFICANT INCREASES IN ENERGY
CONSUMPTION, HIGHER RUNNING COSTS AND MAINTENANCE
Tank dimensions do not include base. *Flow rates are a guide only - peak flow rates can be achieved for short periods only. Peak flows based on 105kpa pres-
sure loss through valve. Minimum inlet pressure 420 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge applications (e.g. tank
filling), or during regeneration a NHWBP option will be required to provide back-pressure when the softener is regenerating.
Model
(Dia x Height)
cms inches
resin
litres
in/out
mm
service
lpm*
peak
lpm*
Back
wash
lpm
max/min
capacity kgms
max/min salt
usage kgms
WTWS12
WTWS13
WTWS14
WTWS16
WTWS21
WTWS24
WTWS30
WTWS36
WTWS42
WTWS48
30 x 130
33 x 137
35 x 165
40 x 165
51 x 157
61 x 183
76 x 183
92 x 183
107 x 183
122 x 183
12 x 52
13 x 54
14 x 65
16 x 65
21 x 62
24 x 72
30 x 72
36 x 72
42 x 72
48 x 72
56
70
100
125
175
300
500
700
875
1175
25
25
25
40
40
40
50
50
80
80
38.0
48.0
67.0
83.0
116.0
202.0
335.0
435.0
587.0
788.0
76.0
96.0
134.0
116.0
232.0
265.0
470.0
473.0
946.0
946.0
13.0
16.0
18.0
23.0
42.0
53.0
82.0
125.0
162.0
217.0
3.9
4.9
6.7
8.7
12.3
21.0
33.5
49.0
61.3
81.9
1.3
1.6
2.2
2.9
4.1
7.0
11.1
16.3
20.4
27.3
13.5
16.9
22.8
30.0
42.0
72.0
114.0
168.0
210.0
280.0
4.5
5.6
7.6
10.0
14.0
24.0
38.0
56.0
70.0
93.3
FEATURES
 Single or multiple softener configurations
 Top-mount 5-cycle automatic softener valves. Side-mount option
available on WTWS16 to WTWS48 systems
 Water meter, pressure differential or external signal regeneration
initiation
 Single, alternating or twin metered controls. Sequential or parallel
controls for multiple softeners
 Free-standing FRP fibreglass wrapped polyethylene resin tanks
 Heavy duty polyethylene brine tanks & lids
 Food grade industrial softener resin
 No Hard Water Bypass valve option to prevent unsoftened water
to service during regeneration
 Motorised alternating valve option for soft water regeneration
Optional No Hard Water Bypass Valve
(NHWB) to prevent hard water to
service during regeneration.
Add ‘-NHWB’ suffix to Softener Model
Optional Motorised
Alternating Valve (MAV)
option for soft water
regeneration

7. C&I SERIES
Autotrol Valve
Water Softeners
Removal of scale-forming hardness minerals
THE PRINCIPAL SCALE-FORMING MINERALS, CALCIUM AND MAGNESIUM,
ACCUMULATE IN PIPING, HEAT EXCHANGERS, WATER HEATERS, BOILERS AND
STEAM EQUIPMENT RESULTING IN SIGNIFICANT INCREASES IN ENERGY
CONSUMPTION, HIGHER RUNNING COSTS AND MAINTENANCE
Tank dimensions do not include base. *Flow rates are a guide only - peak flow rates can be achieved for short periods. Peak flows based on 105kpa pressure
loss through valve. Minimum inlet pressure 420 kpa. Maximum inlet pressure 600 kpa with no water hammer. For open discharge applications (e.g. tank
filling), or during regeneration a switch kit &/or solenoid valve or NHWBP option will be required to provide back-pressure when the softener is regenerating.
Refer Dowdens for information and pricing.
(Dia x Height)
cms inch
resin
litres
in/out
mm
service
lpm*
peak
lpm*
Back
wash
lpm
max/min
capacity kgms
max/min salt
usage kgms
Softener
Model
WTWS12M
WTWS13M
WTWS14M
WTWS16
WTWS21-MGM
WTWS24-MGM
WTWS30-MGM
WTWS36-MGM
30 x 130
33 x 137
35 x 165
40 x 165
51 x 157
61 x 183
76 x 183
92 x 183
12 x 52
13 x 54
14 x 65
16 x 65
21 x 62
24 x 72
30 x 72
36 x 72
56
70
100
125
175
300
475
700
25
25
25
40
40
40
50
50
38.0
48.0
63.0
83.0
116.0
202.0
288.0
288.0
75.0
95.0
95.0
125.0
175.0
288.0
288.0
288.0
13.0
16.0
18.0
23.0
42.0
53.0
82.0
125.0
3.9
4.9
6.7
8.7
12.3
21.0
33.3
49.0
1.3
1.6
2.2
2.9
4.1
7.0
11.1
16.3
13.5
16.9
22.8
30.0
42.0
72.0
114.0
168.0
4.5
5.6
7.6
10.0
14.0
24.0
38.0
56.0
VALVE, CONTROL & CONFIGURATION OPTIONS:
 Single softener or multiple-softener configuration
 Free-standing, skid-mounted or containerised systems fully
plumbed and wired
 Timer, water meter, pressure differential or external signal
regeneration initiation
 Single or twin, timer or metered control; or alternating,
sequential or parallel controls for up to four softeners
 Top-mount or side-mount 5 cycle automatic valves on
softeners 30cm to 107cm diameter
 Hydraulic or pneumatic valves with stager and controller in
Nema enclosure on softeners 76cm to 160cm diameter
AUTOTROL VALVES USED ON ALL MODELS EXCEPT 16” (CLACK)