no water in rear wash

my rear washer has recently decided not to spray water out, i can hear the pump trying to get the water through but i think there must be a blockage in the pipe , has anyone got a method of unblocking the system,, cheers

Hi, I would check the jet first as they have a habit of becoming blocked... Also, make sure you have no screen wash floating around in the car or tail gate.. If those don't come up, check the motor/pump on the washer bottle to make sure it is connected and is not blocked.. Des. . . ;)

rear wash 

underneath the carpet in the boot on the drivers side, there is a joint/non return valve, check the pipe is fastened to it, also that the return valve is working. paul