To clean the nozzle you must first turn off the high pressure washer, detach the nozzle from the lance and then use the sharp end of a paperclip to poke inside the end of the nozzle (where the water comes out of) to remove trapped debris. Then rinse under a tap before use. For the microfibre cloth, hand wash or put in the washing machine on a normal cycle. Lastly, the wash brush can be rinsed under a tap and ensure you check between the bristles in-case dirt may have accumalated.