As I'm exceedingly lucky and have just been given a brand new karcher K4 jet wash last week gratis, I am selling my trusty Clarke 5000 jet wash.
Its works fine, it has a bit of electrical tape around the lance to hold the case together - put there 3 years ago and its still holding - and provides a good jet of water, I've used it for cleaning brickwork and the garden patio. It also has a detergent dispenser for cars, brickwork etc. Variable speed jet.
http://www.clarkeservice.co.uk/manuals/power_washers/jet5000.pdf£25 but collection only from MK, I'm not posting it!