I'm pretty sure they don't Bob. I will find the information for you finding a research that WATER BONGS inhibit less THC and Cannibanoids then smoking a joint or smoking a dry bowl. You may get high quicker from the larger amount of intake, but it is a proven study.

Give me a second to find.
STDzRus Reviewed by STDzRus on . Bongs and Pipes Hey where are some good sites to buy bongs and pipes Rating: 5