Can be removed from outside.  They are dehydrated and fragile.  Put a rag over it, vise grips not too tight, 1/2 turn counter clockwise, careful you don't lose the hose.  I'd suggest flushing both hoses, pump and reservoir as they get very dirty.  I've just ordered 2 new ones from GW (something like 9.95/pr) and am going to put new hose & Y in also but I will be doing the nozzle and it's hose attachment from outside.  Simply can't get at the nozzle from inside.  There is a thread in Samba on this.  Good luck.

> 
> > Help! I need to remove one of my nozzles to flush out some debris which
> > keeps finding its way to the tip. Not sure if I can do it from the
> > front, can't seem to access it from the rear. Any tips are appreciated.
> >=20
> > Gregory Smith
> > Olympia, WA, USA
> > '88 Vanagon GL
> > '77 Lancia Scorpion
> >=20
>