All sorted, took about 30 mins
Only thing that was a bit tricky was getting the wiper arm off the spline bit, other than that its plain sailing.
Oh and you can't cable tie the pipe like that guide says, the 9N3 is like hard moulded plastic so wont happily bend over to create a "kink"
I just disconnected the wiper motor from the pipe via the small white plastic clip and then done the same with the identicle clip in the engine bay underneeth the airbox just before the pipe goes through the bulkhead.
Then I stuck a small plastic rubber out of a pencil in the end and taped it up as best I could, seems to work pretty well.
Any problems just ask and I will be happy to assist!
Finished Result:
Is the pump for the front and rear jets the same or different? How do I stop the pump from running if I accidently knocked the rear washer jet on?