A drip irrigation emitter 10 receives liquid flowing in an irrigation pipe at an inlet pressure and emits the liquid out of the emitter 10 at an outlet pressure lower than the inlet pressure. The emitter comprising a flow path 20 through which the liquid flows in the emitter 10, wherein below a threshold pressure of liquid in the pipe the emitter 10 is adapted to emit a regulated flow of liquid out of the emitter 10, and above the threshold pressure of liquid in the pipe the emitter 10 is adapted to emit a non- regulated flow of liquid out of the emitter.