Ecosoft BW MO12000 4″ reverse osmosis system for brackish water is a compact and efficient solution developed for treating water with TDS levels of up to 10 000 ppm. Most system components in contact with feed water, including piping, are made of corrosion-resistant AISI 316 stainless steel. The fully welded-free design increases chemical resistance, allowing operation with feed water containing high chloride concentrations and at pressures of up to 25 bar.

The system is equipped with the Ecosoft OC6000 controller, which enables online access and remote monitoring of key operating parameters. Users can track the system’s status, water flow, and the quality of the purified water in real time. The open-frame design provides quick access to all components for maintenance and service.

Thanks to its compact size, corrosion-resistant construction, and operation from a standard 230 V power supply, MO12000BI6 is an ideal solution for coastal installations such as cottages, private homes, and hotels. It is also suitable for small businesses in household chemical production, cosmetics, car care products, laboratories, or distillate manufacturing.

• Flow capacity: 500 L/h
• Designed for brackish water treatment
• AISI 304 stainless steel frame
• AISI 316 stainless steel piping without welding
• Ecosoft OC6000 controller with online access
• Grundfos® CRN 1-30 high-pressure pump

Service and maintenance

If you decide to carry out the replacement yourself, follow the instructions below.

⚠️ Use sterile rubber gloves when handling membrane elements

⚠️ If high microbiological purity is required, disinfect the reverse osmosis system and the permeate tank before installing the membrane

Membrane holder cap
1 – Screws, 2 – Locking half-rings, 3 – End cap, 4 – Sealing ring, 5 – Sealing ring for the end cap.

Remove the membrane element(s) from the factory packaging. To replace the old element with a new one, disconnect the pipelines and remove the membrane holder(s) from the frame.

⚠️ Pay special attention to the sealing ring of the end cap (5). If the seal is missing, permeate and concentrate streams may mix.

After removing the end cap, install the membrane element in the direction of the arrow marked on the membrane holder (from the inlet water side). The membrane element must be inserted into the holder with its sealing ring aligned with the inlet connection of the holder head.

After installation, secure the holder head with screws and locking elements to the holder body, then reconnect the pipelines for feed water, concentrate discharge, and permeate outlet on the membrane holder. Fix the membrane holder to the reverse osmosis system frame.

During the first system startup, the initial portion of permeate must be discharged to the sewer, with a minimum discharge time of 15 minutes.

💡 When installing the membrane, pay attention to the direction of the arrow on the membrane holder.

💡 If necessary, use glycerin as a lubricant.