Just recently my drivers side washer jets has been quite weak. When I lifted the bonnet and had a look the 'Y' piece that splits the screen wash between the 3 jets appeared to be leaking. When I took it out of the car and dismantled it, it appeared to have a little vale with 2 washer inside.
Does any one know what this does?
I have taken it apart and removed the valve and blocked the hole and all seems well.