This video is a tutorial on how to clean a dirty window screen. The man in the video points out that most homeowners will take the screen off the window and spray it with a hose. This leaves the screen still somewhat dirty. To clean it properly, you need a wading pool filled with water and liquid detergent. Put the screen in the wading pool and soapy water. Let it soak for a minute or two. Then you will take a broom and gently sweep both sides of the screen. He recommends to use a soft bristle broom made with polyester bristles.