First, lather the entire basin area well. Next, you pull the cylinder over the flaccid penis and press it against your body. Insert the hose on the vacuum pump onto the hose connection on the cylinder and generate the vacuum by actuating the pump. At the beginning of the application, create the negative pressure so that your penis has a good and powerful erection. The fabric should slowly get used to the negative pressure. During use, repeatedly open the pressure regulator. As a result, the blood then flows back easily. Then pump again. Through this type of application you have an erection with a blood flow. The application with a permanently closed pressure regulator produces an erection with a congestion.