How do I do an enema?

Fill an enema vessel with 1–1.5 l of lukewarm water. Loosen the locking lever to allow a little water to drain out, to remove any residual air from the hose. Hang the enema vessel on a door handle or towel holder, and lubricate the end of the hose with Vaseline. Kneel on the floor, bend your upper body forwards and rest on your lower arms. Then use one hand to insert the hose into the rectum. Loosen the lever to allow the water to enter. Close the lever again, and then carefully remove the tube. Try to retain the enema for roughly one to three minutes.