WS3 duplex water softeners are used for the largest jobs on an industrial scale. They are capable of treating water up to 56m3/hr.

They have a large footprint and need a plant room of a suitable size. All systems this size are bespoke designed. The valves can either be side mounted or sit on top of 6” flanged vessels depending on application and design.

Interconnecting pipework is not included due to the bespoke design, however a price can be obtained once layout drawings are provided. WS3 valves come with a system controller on the front of the valve and can be set up in a master and standby combination if required. 

Our systems are built by our team of senior engineers ensuring the reliability you require and come with a typical resin life expectancy of around 10 to 15 years. 

Metered Clack duplex softeners consist of all the required components to allow you to start softening your water straight away.


RefDescriptionTank Size (x2)Resin Quantity (x2)Flow Rate* Capacity @ 300 ppm** Salt Usage Per Regen
DS1000-C31000 Litre, WS3 Metered Duplex Softener42” x 78”1000 Litres40.00 m3/hr166.66 m3120.0 kg
DS1250-C31250 Litre, WS3 Metered Duplex Softener48” x 82”1250 Litres50.00 m3/hr208.33 m3150.0 kg
DS1800-C31800 Litre, WS3 Metered Duplex Softener63” x 67”1800 Litres56.76 m3/hr300.00 m3216.0 kg
* Capacity based on 50g CaCO3 hardness removed per litre of resin.
** Salt usage based on 120g per litre of resin. This will increase if salt dosage is increased.