For making a water bong you need a pipe, water bottle, Poke a knife on the side of the bottle and make a hole. Put the metal pipe into the hole. Ensure it is airtight through that. Light up and heat the knife so that it becomes red hot. Now burn a hole at the top neck of the bottle. Ensure that the whole is a bit big in size that is around a millimeter in diameter. Now put in water into the bottle which signals end of the making of the apparatus. Put the lighter pipe and see the bubbles flowing across form the bottle because of the fire that you put near the pipe.
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