I put some thick soap instead of windshield washer fluid in the reservoir by mistake is there anyway I could flush it or empty somehow please help to embarrassed to tell anyone I know

 

Can't remember where the filler/bottle is on the GV, but any other car I've needed to change the washer pump, it was the same.
Removed the wheel where the bottle is, removed the wheel arch liner and that gave access to the screenwash pump.
Remove that to drain, flush if required.
Again though, not sure if it's the same on the GV.

 

Hi there, would have been help if you had added more info on your car, but here goes. If you've a Voyager around 2003, think same up to 2008, the pumps, two off, one front screen and tother rear screen are under the front right mud protector under wing. Position at back of Fog Lights. Clean out both seeing your under there..