3
Specification
• At the stated service flow rates, the pressure drop through these devices will
not exceed 15 psig.
• Changing salt settings from factory setting may require changing injector
sizes to achieve stated capacities
How a WaterGroup Mixed Bed Water Softener Works
Water softeners remove hardness in the water by exchanging particles in the water, or ions. They remove hard ions the
calcium and magnesium in the water by trading it for sodium ions producing soft water. Unlike the calcium and magnesium,
sodium stays dissolved in water and does not form a scale. Sodium also does not interfere with the cleaning action of soaps.
The sodium is released by a charged resin contained in the softener, this resin also traps the calcium and magnesium ions.
Eventually this resin releases all of its sodium and has filled up with other ions, so it then must be regenerated. Regeneration
is accomplished by washing the resin with a salt saturated brine solution that removes the calcium and magnesium while
replenishing the sodium. This is why the softener requires a brine tank and salt.
The water softener can run for days before running out of sodium, and when it does, the sodium is replenished
in only a matter of a few hours.
The mixed bed softener also has activated carbon which adsorbs unpleasant taste and odor frm water which is caused due
to chlorine and organics. In normal operation, the Time of Day display will alternate being viewed with the Volume Remaining
display. This display will be in gallons or liters. As treated water is used, the Volume Remaining display will count down from a
maximum value to zero or (---). Once this occurs, a regeneration cycle will be initiated at the Set Regeneration Time. Water
flow through the valve is indicated by the Flow Indicator that will flash in direct relationship to flow rate.
Example
833 Gallons of Treated
Water
Remaining
0 Gallons of Treated
Water
Remaining
Timer Behavior During Regeneration
In regeneration, the control will display a special regeneration display. In this display, the control will show the current
regeneration step abbreviation the valve is advancing to or has reached and the time remaining in that step. The step
abbreviation displayed will flash until the valve has completed driving into this regeneration step position. Once all
regeneration steps have been completed, the valve will return to Service and resume normal operation.
Example
Less than 6 minutes
remaining in Regeneration
Step Rapid Rinse
Pushing the
during a regeneration cycle will immediately advance the valve to the next cycle step position and
resume normal step timing.
Please see the control valve manual for different regeneration step abbreviations.
PM Indicator
PM Indicator
Flow Indicator
(Flashing with water flow)
Flow Indicator
(Flashing with water flow)
5
Regeneration Step
Abbreviation
* For Municipal Chlorinated Water Supplies Only
Working Temperature = 34-110°F (1-43°C)
(Do not subject the unit to freezing temperatures)
Working Pressure = 20-125 PSIG (137-861 kPa)
Voltage = 120V / 60 Hz
Pipe Size = 3/4”
Unit
†
Item #
Model #
Tank
Size
Media (CF)
Service
Flow Rate
(gpm)
Backwash
Flow Rate
(gpm)
Brine Tank
Dimension
(W X D X H) in.
Salt
Capacity
(lbs)
Shipping
Weight
(lbs)
Mixed Bed Softener - Taste and Odor*
4932
MXC75
9 x 35
0.75
8
1.5
21 X 36
224
85
4933
MXC10
10 x 35
1
9
2
21 X 36
224
100
4934
MXC125
10 X 47
1.25
9
2
21 X 36
308
140
4935
MXC20
12 X 52
2
12
3
23 X 38
308
190
4936
MXC30
14 X 65
3
15
4
23 X 38
308
230
CAUTION!
This Softener should only be used for Municipal Water Supplies.
• The manufacturer reserves the right to make product improvements which
may deviate from the specifications and descriptions stated herein, without
obligation to change previously manufactured products or to note the change.
* Do not use water that is microbiologically unsafe without adequate
disinfection before or after the system.
* Iron content must not exceed 1 ppm. Beyond 1 ppm an iron softener must be
used. Periodic media cleaning is required by
Pro-Res Cleaner is iron level exceed 0.3 ppm
†
USA customers will need to add “-4” to the item numbers for ordering.
