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