I had noticed the windscreen washer bottle was empty even though I had filled it up just before the MOT. Took it off and found that no only was it leaking but the motor outlet had snapped off.
So it was onto E-Bay and a new £10 windscreen water bottle arrived today.
Astonishingly, considering it was generic and I had purchased it purely based on the size, it not
only had the same bulkhead slide connector but the electric plug was the
same. So 3 minutes later (much of which was spent going to the kitchen
and back to get water) I have a new fully working washer system.