The Culligan HE GREY water softener, designed to satisfy the most varied professional and semi-industrial requirements, is a specific device for removing hardness (Calcium and Magnesium), by means of exchanger resins that are selected and suitable for contact with water and are foodsafe, such as Cullex strong cation exchange resins in a sodium cycle, normally able to be regenerated with sea salt. The vertical cylindrical container is made of non-toxic plastic material, an exclusive Culligan "Quadra-Hull " patent composed of four overlapping layers: A foodsafe internal liner A body of fiberglass reinforced with an epoxy resin Additional carbon reinforcing, that ensures optimal pressure resistance A directly sealed outer covering, that resists moisture The water softener provides savings in costs while being environment friendly. The water softener, using Culligan patented technologies, such as countercurrent resin regeneration, optimization of salt consumption and proportional regeneration, enables saving water and electricity by up to 46% compared to a conventional water softener. Culligan proportional regeneration technology enables the water softener to regenerate only the spent part of the bed of resin, which reduces to a minimum the consumption of salt and the associated water consumption necessary for the regeneration. The Culligan Dial-a-Softness ® control system enables selecting the hardness of the water for the service without an additional external mixing device. The exclusive Culligan Soft-Minder ® monitors the daily use of water by flow meter and offers an advanced diagnostic program. It allows the regeneration program to be started according to: volume of treated water timed volume of treated water with timed regeneration (domestic volume) The exclusive control valve, which uses motor pistons, offers more reliability than conventional rotating valves. The design of the valve with several pistons means easier maintenance and longer life. The brine container made with corrosion-proof components and the Dubl-Safe system that controls the level and the quality of the brine ensure perfect functionality. Moreover, the control valve is fitted with an automatic bypass system to supply untreated water to the service even when the water softener is being regenerated. The control valve is already arranged for the following accessories: Progressive flow: enables management of several water softener columns operating in parallel in cascade to cover peak water demands without having to oversize the water softener Communication cable: enables the display of data from control unit to PC or PLC/remote control network Service water stop: through this device it is possible to stop the water to the service when the water softener is being regenerated.