Equipment Cleanup Quiz Please sign up for the course before taking this quiz. To clear the nozzle of an aerosol sprayer you should spray the can into the air, pointing upward, until air comes out.1 True False Draining the remaining paint out of a paint striper is the first step in cleaning it, what should you do next after draining?1 Turn the unit on to spray out any remaining paint. Wipe off the exterior of the machine to prepare for storage. Add water to the sprayer and run the sprayer to flush the hoses and nozzle with water. Cleaning your chalker is pretty simple, you just need to:1 shake the hopper so the chalk settles in the hopper before storing. empty all the chalk from the hopper to avoid compaction. brush chalk off the sides of the hopper before refilling for the next day.