Ford Focus 02 rear window washer?

I have no water feeding through to the rear window washer. Initially when activating it the water leaked through the roof lining above the parcel shelf. After removing the small brakelight at the top of the screen to gain access to the back of the assembly the tubing was disconnected. I reconnected and secured it but now on activation there is still no feed to the window and no interior leak either. No obvious water coming from underneath the car so I,m baffled! Under the bonnet to the screenwash bottle and I can't see where the pipe attaches at the bottle either to see if it has disconnected there. Help!