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Water Softening with Ion Exchange

MAK’s Water Softening plants (WSP) are designed to reduce hardness from water sources that may have negative downstream implications such as scaling of pipework and equipment. The WSP contains resin beads charged with sodium ions. When the hardness ions come in contact with the resin beads the hardness ions are collected and the sodium ions are released, thereby softening the water via ion exchange. The WSP automatically completes a regeneration cycle whereby the filter is backwashed and the resin recharged with sodium ions via the brine regeneration tank.

Water Softening can be used in a range of applications such as potable water, boiler feed water and domestic appliance feed water (washing machines, dishwashers etc). Additional pre or post WSP treatment steps may be added to suit feed or softened water requirements such as iron removal, odour removal, colour removal, hydrocarbon removal, pH correction or sterilisation. The MAK WSP’s are available as skid mounted units or containerised systems.

If you have specific requirements, contact us about our custom water filtration systems or our hire options.


Parameter Units WSP-50 WSP-100 WSP-200 WSP-300 WSP-500 WSP-1000
Softened Water  Flow Rate m3/day 50 100 200 300 500 1000
Softened Water  Recovery Rate % 90 – 98% (varies according to feed water quality)
pH - 6 - 10
Free Chlorine mg/L < 0.2 mg/L
Iron mg/L < 3 mg/L
Manganese mg/L < 2 mg/L
Softened Water Hardness mg/L <120 as CaCO3 (typical, can be improved depending on requirements)
Raw Water Hardness mg/L <200 as CaCO3 (higher levels of hardness can be treated if required)
Raw Water Temperature °C 15 ~ 35
Ambient Design Temperature °C 5 ~ 40 (-15 ~ 45 for insulated containerized system)
Feed Water Inlet Pressure kPa >15 flooded suction or 200 kpa pressurised feed.
Softened Water Discharge Pressure kPa ~40 (higher discharge pressures available on request)
Power Supply - AC 240, 1 Phase, 50/60Hz / AC 380~450 V, 3 Phase, 50/60 Hz
Power Consumption kW 2 3 4 5 7 9
No. Containers (Optional) ft 1 x 10’ 1 x 10’ 1 x 10’ 1 x 10’ 1 x 20’ 1 x 20’


✓= Standard Supply o = Optional Supply - = Not Applicable

Equipment WSP-50 WSP-100 WSP-200 WSP-300 WSP-500 WSP-1000
Skid Mounted Plant & Equipment
Twin Parallel Alternating Softners o o o o o o
Softening Feed /Regeneration Pump o o o o o o
PLC Control System with HMI o o o o o o
Containerized system, c/w A/C & Lights o o o o o o
Container Insulation (walls & ceiling) o o o o o o
Container non-slip floor coverings o o o o o o
Container Side Access Door o o o o o o
Additional Pre-Softening Treatment o o o o o o
Additional Post-Softening Treatment o o o o o o
Premium Instrumentation Package o o o o o o
Softened Water Distribution Pump Set o o o o o o


Instrumentation Standard Package Premium Package
Pressure Gauges
Pressure Transmitters (4-20 mA) -
Flow Transmitters (4-20 mA) -
Flow Switch -
Flow Gauges (Rotameters) - o
Float Switches (Feed/Softened Water, Regeneration Tanks) -
Remote Monitoring & Control Capabilities -


Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained on this page.