How To Make A Glass Waterfall Gravity Bong

I have heard of this type of bong being called a waterfall, a gravity bong, a third lung, an aqua lung, and simply a 'liter'. I don't know what is the 'proper' name, but I do know that it hits like a ton of bricks. You typically see them in plastic form, but at #TheHigherThingsClub we try to avoid that plastic nonsense. This video shows you how to make a glass 'waterfall gravity third aqua lung liter' bong. #TheHigherThingsClub P.S. - I recently launched a new website combining my love of math and cannabis. Check it out if you are into that sort of thing: https://www.cannabisindustrydata.com/