Hydro-cleaning system for a WC

A hydro-cleaning system in particular apt to the cleaning of a WC, comprising a jet device comprising:

• a hollow cylindrical body, configured to contain a liquid;
• a nozzle, removably connected or connectable to a first terminal end of hollow cylindrical body;
• a piston, associated with the hollow cylindrical body, comprising a driving rod, configured to slide according to a translation movement, integral to a plunger, said plunger being movable in an approaching or distancing translational movement from the first terminal end of the hollow cylindrical body, wherein the approaching movement causes a liquid emission phase from said nozzle, and wherein a first chamber and a second chamber of the hollow cylindrical body, is defined by the plunger and the first terminal end of the hollow cylindrical body and a second terminal end thereof, respectively;
• a first unidirectional valve, removably connected or connectable to said nozzle and oriented so as to allow the emission of the liquid from the hollow cylindrical body and to prevent the inlet of the liquid into the hollow cylindrical body;
• a bottom removably connected or connectable to the hollow cylindrical body at the second terminal end of the hollow cylindrical body, having a hole with guiding members, configured to allow a sliding of the driving rod;
• a return elastic member configured to withdraw the piston to a position of maximum distance from the first terminal end;
• a reversible locking mechanism of the piston with respect to said hollow cylindrical body, comprising a magnetic locking system;
• and
• a releasing system for the reversible locking mechanism,
• wherein the magnetic locking system comprises one or more magnets placed near the bottom, and a corresponding attraction member positioned at a first end of the rod opposite to the plunger configured to be attracted by the one or more magnets.