A liquid is given to someone to drink, and then the funnel is placed at the elbow of his bent arm. The other arm is held stiff and moved up and down like a pump handle. The liquid pours out of the funnel in a steady stream.
A liquid is given to someone to drink, and then the funnel is placed at the elbow of his bent arm. The other arm is held stiff and moved up and down like a pump handle. The liquid pours out of the funnel in a steady stream.