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Article : FK1252TWIN

Wholesale Iron and hardness reduction filter of continuous flow FK 1252 Twin (Ecomix® A)


Ecosoft FK 1252 Twin filter is intended for complex water treatment and reduction of iron, manganese, hardness, ammonium and organic matter.

The filter is commonly used in cottages, restaurants, laundries, car washes, breweries, bakeries, water-heating and steam-powered boiler plants.  

The filter represents a vessel containing Ecomix® advanced softening material, a multifunctional control valve that provides and manages the entire operation and a brine tank for system regeneration.

The unique control valve is a product developed by Ecosoft and produced by Clack Corporation (USA). It provides filter’s independent service, keeps the constant reserve of purified water and doesn’t require any special attention.

Key advantages

  • Uninterrupted delivery of clean and soft water

  • Fully automatic and noise-free

  • Cost-effective salt consumption and low volume of discharge

  • Durable and efficient operation during no less than 5 years

  • Quality guaranteed by the international CE and ISO certificates

Technical data

Capacity (nominal), m3/h


Volume of filter media, L


Volume capacity, m3 (for hardness at 5 meq/L)


Salt consumption per one regeneration, kg


Water consumption per one regeneration (volume of discharge), m3


Regeneration duration, min


Pressure drop in service mode, bar


Operating pressure, bar


Power supply

230 V, 50 Hz

Power consumption, W


Diameter of pipeline connections


Net weight, kg


System dimensions (height x width x depth), cm


Requirements to the feed water










Chemical oxygen demand

mg O2/L





Required level of purification from sediment particles



Temperature of feed water


+4 … +30

Components of the filter

  • Filter vessel

  • Clack WS1TWIN СЕ multifunctional control valve (USA)

  • Brine tank with brine system for regeneration

  • Ecomix® advanced softening material (Ecosoft, Ukraine)

The filter is connected to the cold water supply. Water pre-cleaned from sediment impurities enters the filter vessel filled with Ecomix® filter media. Ecomix® consists of five components that are self-classified into layers inside the filter during the regeneration. Water evenly passes through each layer, sequentially reducing the content of iron, manganese, organic matter and hardness. Purified water is supplied to a consumer through the riser pipe of the filter vessel.

After exhaustion of the filter media, the control valve transfers one vessel of the filter to the regeneration mode and engages the second vessel. Regeneration is performed with purified water supplied from the operating vessel of the filter and is divided into 5 clearly predetermined stages that are carried out by the valve independently. The first stage is the backwash intended to wash out compounds of iron and manganese from the filter media. Then the brine solution is supplied from the brine tank to the filter vessel to pass through Ecomix®. As a result, hardness and organic matter are washed out and together with the remains of solution are discharged to sewers. The next stage (3) represents a short backwashing that ploughs up the filter media again and washes out the remains of brine solution. After regeneration, washing of the media is carried out with direct water flow (stage 4) for filter layers to self-classify in the correct order. The last stage (5) represents filling the brine tank with water to dissolve the tablet salt and preparation of the solution for next regeneration.

Thanks to the use of a multifunctional valve, the filter does not require constant attention. The only important task connected to maintenance for customer is timely stocking of the salt. It will ensure efficient regeneration of the filter media and thus durable filter service life and water quality.

If any problem arises, the valve will inform about the problem at the display with a text message containing contact information of service center.


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