Rear WIndow Washer Plugged on 2005 Mercury Mariner

My rear window washer has stopped working. I can hear the pump working so I think the line and/or nozzle are plugged. How do I access the nozzle? I can't see any place to get at it from the back side of the rear lift gate.

Asked by for the 2005 Mercury Mariner
I have exactly the same problem. I tried the safety pin answer and it worked for a couple of days but it get clogged again. I need to remove the nozzel. I have a subaru forester.
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Have you tried clearing the nozzle with a small safety pin, may be even while a friend activates the washers?