The unit type FCS3000 controller is universal applicable for automatic monitoring and control of water softener plants equipped with Clack valves. Also suitable for single and double column installations in alternating and parallel circuits. Adaptable to user specific requirements by built-in programmable options. The programmed configuration will be stored into non volatile memory and therefore not be affected by power loss. Optional circuit board for connection of 3-way Clack motor valve and connection of chlorine probe.