I usually use 2 to 3 liters of warm water. A so-called high intake works best when you hang the enema bag over his head somewhere. Then the rectal tube introduced into the anus and then opens the valve. Then you should kneel down, and put her head on her hands lying on the ground, so that the butt is the body part most. With this method, the water runs best in the intestine. With this preparation, the masturbation is really beautiful.