Treatments for drinking water and water conditioning: filtration, disinfection with chlorine, ultraviolet, ozone, etc. Networks, expert reports, flow measurement, instrumentation, leak detection by correlation. Tele-management, decontamination, cleaning and maintenance of installations. Installation and supply. Supply of products for domestic water treatment, for swimming pools and measuring equipment. Studies on the use of water resources. Technical advice. Design, installation, maintenance of purification plants and of hydrocarbon and grease separators.