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Industrial & Commercial
Twin Alternating Water Softeners
68-280 gallons per minute
Dual Interlock
System 5 Water Softeners are designed and manufactured for high flow
rates and uninterrupted service. Both softening tanks will be in
parallel service. All brass valves, fiberglass mineral tanks,
polyethylene brine tank, and high-quality polystyrene resin are
manufactured in the USA dependable operation.
Regenerations are initiated when a preset volume of water passes
through the water meters. Each control valve is equipped with a water
meter and fully-adjustable controls. When a meter zeros out, the
system places the exhausted tank into regeneration. An interlock will
prevent the second tank from simultaneous regeneration. Electronic
timer, as shown above, and hard water bypass are available as
options.
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Operating
Requirements:
Pressure: 25 psi – 125 psi
Temperature: 35°F - 100°F
Electrical: 120/60, 5 amps
Turbidity: 5 NTU (max)
Chlorine: 1 ppm (max)
Iron: 2 ppm (max)
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Model Number
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DS302-7
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DS452-7
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DS662-7
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DS902-7
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Max Capacity (grains)
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300,000
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450,000
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660,000
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900,000
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Min Capacity (grains)
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200,000
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300,000
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440,000
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600,000
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Resin (cubic feet)
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10
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15
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22
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30
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Salt Req'd Max Capacity
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150
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225
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330
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450
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Salt Req'd Min Capacity
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60
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90
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132
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180
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Mineral Tank Size (inches)
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24x72
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30x72
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36x72
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42x72
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Brine Tank Size (inches)
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39x48
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39x48
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50x60
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50x60
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Storage Salt Capacity
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1800
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1800
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2500
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2500
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Service Flow Rate
(cont)(gpm)
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68
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84
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78
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84
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Service Flow Rate (peak)(gpm)
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91
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105
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107
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118
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Min Service Flow Rate (gpm)
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10
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15
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22
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30
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Drain Flow Rate (max)(gpm)
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15
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25
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35
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50
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Valve Pipe Size
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2"
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2"
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2"
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2"
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Flow
Rates between 68 – 84 gpm, 2”, 10 to 30 cu ft, Fleck 2900
& 3150 valves with System 7 controls
Standard Range
Meter: 1,250 – 21,250 gals. Extended Range Meter: 6,250 –
106,250 gals.
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Model Number
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DS663-7
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DS903-7
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DS123-7
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Max Capacity (grains)
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660,000
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900,000
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1,200,000
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Min Capacity (grains)
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440,000
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600,000
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800,000
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Resin (cubic feet)
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22
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30
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40
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Salt Req'd Max Capacity
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330
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450
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600
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Salt Req'd Min Capacity
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132
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180
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600
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Mineral Tank Size (inches)
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36x72
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42x72
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48x72
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Brine Tank Size (inches)
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50x60
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50x60
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50x60
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Storage Salt Capacity
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2500
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2500
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2500
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Service Flow Rate
(cont)(gpm)
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185
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200
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213
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Service Flow Rate (peak)(gpm)
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250
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268
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280
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Min Service Flow Rate
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22
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30
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40
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Drain Flow Rate (max)(gpm)
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35
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50
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70
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Valve Pipe Size
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3"
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3"
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3"
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Flow Rates between 185 – 213 gpm, 3”,
22 to 40 cu ft, Fleck 3900 valve with System 7 controls
Standard Range Meter: 3,750 – 63,750 gals. Extended
Range Meter: 18,750 – 318,750 gals.
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NOTES:
Capacity is based on manufacturer’s data
at service flow rates specified and free of color, oil and turbidity.
<15 psi drop at continuous flow rate.
<25 psi drop at peak flow rate.
Use minimum capacity when sizing units.
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