This video teaches the secrets of making a waterfall bong in simple steps. First take a glass bottle and make a hole near the bottom of the bottle. Now make a hole in the bottle cap and get a wrench socket depending on your cap size. Stick the socket to the cap using glue and make a wire screen if you wish. Fill the bottle with water and load it by closing the hole using your finger. Finally get alight and release your finger from the hole to finish.