Abstract: An air regulation system for a hydropneumatic reservoir of a hydraulic conduit includes a chamber, a water filling device for the chamber, a water emptying device for the chamber, an automatic air introduction device for introduction of air in the chamber during emptying, an automatic injection device for injecting air from the chamber to the reservoir during filling, and a control device connected to at least one excess sensor for sensing the overpassing of a threshold level of water contained in the reservoir and also connected to a chamber filling and emptying assembly. If the sensor indicates an insufficient air volume in the reservoir, the control device initiates chamber filling/emptying cycles until the sensor indicates that the air volume in the reservoir is sufficient.