There is provided an on-line manual flush drip emitter. The emitter uses a diaphragm to provide pressure compensation. A plunger runs through an outlet of the emitter and is connected to the diaphragm. The plunger may be manually forced to push against the diaphragm to disengage it from a pressure compensating tortuous path and allow the water to flush debris from the tortuous path, and ultimately exit the emitter to the outside environment.
