Headlight Washer Jet Problems
 

My left headlight washer jet doesnt seem to fully retract and i've lost one through it falling out on the road, I bought a new one and put it in and it still doesnt fully retract stick out a slight bit and im afraid it'll fall off while driving, anyone have any idea what could be the problem? i took it to a garage and by playing around with it he said i need a new pump any ideas?
thanks