[sootytorques]

...twist the switch done, and the front washer operates, rear is not blocked or frozen, operate front wipers or pull leaver towards me, rear washer works, suspect faulty stalk, something else for dealer to look at come service time next week.

[Phil №❶]

Are the lights working ok. 

[sootytorques]

lights are fine, switch for lights not on wiper stalk.

[Dazzler]

You have hit a bad patch sooty  (I'd be a bit dark too if I was you  )

[Phil №❶]

I know, i just wanted to be sure that the other stalk was working ok. Tell 'em to fix it.