Water jets (squirter)

[VanPlan]

Hello ladies and gentlemen,

I'm having issues with my water jets for my windscreen.
When I initiate them I get them squirting too high and they miss the windscreen all together. I've tried to move them and fiddle with them with no luck.

My question is..Am I able to change them? Or has anyone done them before. Really could do with the help as a dirty windscreen is doing my nut in.

[Altransit]

I used to stick a large pin in mine, and move the nozzle as required.

If they're stuck, you may need to take them off and soak them in a lime dissolving liquid