Underthe water so when you suck and light the bowl the smoke gets carried with the air your sucking in, through the water there by filtering it.
Justin.J Reviewed by Justin.J on . homemade bong question hey n00b question ok the first time i smoked out of a bong was about a month ago.. i also smoked out of a homemade bong about a week ago. i'm making my own, and i was wondering if the piece is supposed to be under the water and how deep under the water? sorry im new to bongs :) Rating: 5