Hi
I just had to sort out the drivers side windscreen washer on the defender,
I tried blowing, sucking prodding and poking. But still nothing came out, so I looked at the hole after the ashtray came out, but couldn't see a problem. So I bit the bullet and decided to remove the dash top, wow easy or what.
After removing the dash I could see why the washer wasn't working, the pipe had been caught in the front vent linkage nipping it like a pair of surgical forceps.
So a new length of pipe and they are as good as new, all done in hour and a half including the compulsory tea break to warm the fingers up in these sub zero temperatures.