Mobile device for treating water

A mobile device (D) for services related to providing hot water, water treatment, and cleaning of any fixed or mobile surfaces,

• said device comprising:
• an internal chassis (120);
• and
• a tank (100) for recovering fluids, the internal chassis including a first subassembly (300) for producing hot water with at least one condensing boiler (320a) associated with at least one module (330a) for supplying gas formed by a plurality of gas cylinders (331a, 332a) storing the gas in internal volumes thereof, the gas being in a liquid state in a lower part of said internal volumes and in a gaseous state in an upper part of said internal volumes, said gas cylinders being disposed in the internal chassis (120) substantially horizontally and with an opening orifice oriented upwards so that an end of a pipe for passage of the gas opens onto a larger elongated gaseous part, wherein said device further comprises:
• a second subassembly for injecting and metering a treatment product (400), said treatment product injected into the hot water at an outlet of the device;
• and
• a third subassembly for metered injection of cold water (500), and wherein the second subassembly (400) for injecting and metering a treatment product is configured for treating liquid by dissolution of a solid treatment product in a flow of said liquid, said solid treatment product being packaged as tablets stacked in interchangeable cartridges (410) being removably fastened in a base of the second subassembly (400), the base into which said cartridge is inserted being equipped with a tank (430) for recovering the water capable of leaking during changing of the cartridge (410), wherein said device further comprises a pre-treatment subassembly treating the water before heating in order to prevent limescale formation.