OOO "southern Region" is implementing in Rostov-on-don electrochemical systems "STEL", "Emerald" and "AQUACHLOR" for cleansing, disinfection and directed reagent-free adjustment of the physico-chemical characteristics of the liquids. A key advantage of the proposed equipment is to optimize hygienic parameters, mineral composition and oxidation-reduction (Redox) potential of the treated water.