Tried unblocking them with fuse wire or similar? Would need to disconnect the input and feed it through a couple times, pretty sure it's doable on them if you can get to the hoses.
Thanks, They are not blocked as far as I can tell, they are just aimed a bit too low, the jets kinda hit the wipers when the wipers are in the bottom 'home' position...so the wipers push most of the water off the bottom of the screen when they sweep..
I mean I can cope with it, but it feels like i have to use about 4 times more water than I really need to, so it's kind of irritating!
I suppose ideally I want to angle them up enough so the water hits the screen about 10cm higher
EDIT - guess ensuring the jets are not gummed up with muck can't hurt, as they could be forcing the spray to come out at a funny (ie. too low) angle.... but both left and right jets seem to spray exactly the same (low) so a blockage wasn't my first thought.