I made a waterfall gravity bong too last night. Had a little trouble getting a hole in the top but I finally got it lol. When I get bud next week I might make a video of me smokin it .
orangeman Reviewed by orangeman on . Are gravity bongs bad for lungs? I was wondering if gravity bongs were necessarily worse than regular bongs or worse than any other way of smoking? I'm asking because the method that has to be used. All the smoke being forced into the lungs and all that. Do you guys think it has greater health risks or what? Rating: 5