making a gravity bong

so yesterday i smoked out of one but i didnt pay attention to how my freinds made it, do u just cut the bottom off a 2 leiter and put it in a bucket with the cap for a bowl??

 

Yah mon, use a socket or preferably a glass crack stem.

 

i need some help i dont wanna mess it up, i cut a two leiter in half put the bowl on light it, take it off, push the bottle down while drawing the smoke, is this how 2 do it please help i dont wanna waste my weed =[

 

It's up to you. I know some people that'll pull an entire grav pack, then some will only do partial while not pushing it down.

 

yeah but is that how i do it? i know how to make it but im unsure on the method to do it, i posted above your last post.

 

yea dude youre fine, its not that complicated