Finally managed to sort something that has been bugging me for ages.
The rear washer on my car has been pants ever since I bought it, hardly spraying any water out. Well it finally stopped working when we had all the snow at the beginning of December. Was a nice easy fix as well.
Took the plastic cover off the inside of the boot lid, and exposed the rubber tube feeding the washer jet. Massaged the tube, as I thought it may be blocked, and after a few tries, it's now pumping water again as it should be. I can now see out of the back window!