The new technology has allowed the exchange of columns and the regeneration of the alternating volumetric resins with a single centralised valve and without bypass block solenoid valves. With apparent cost reductions, this allows for the constant obtaining of softened water 24 hours a day without resorting to flow interruptions or complex water production during the regenerative cycle. Drinking water treatment equipment per Ministerial Decree 25/12 and Ministerial Decree 174/04.