well, if you keep the lighter on it, it will only burn the weed faster, but it will just give off more smoke, when i did waterfalls, i would just use a torchlighter and torch the bowl, so all the weed was gone and i didnt need to refill the water, and the smoke was nice. I would say make a gravity-bong, they are more effiecnt for smokeing more than one bowl.
Phaze1 Reviewed by Phaze1 on . Question for Waterfall Bongs... Do I keep the bud lit until all of the water is gone, or do I light it frequently? Rating: 5