A gravity bong is a type of homemade bong that uses water and pressure to draw smoke into the lungs. It consists of a two-piece chamber system that nestles together—one larger chamber to hold the water and a second smaller chamber to hold the bowl and capture the smoke. As the herb is lit, gravity pulls herb smoke into the bottle using water in a container to create suction. A gravity bong is also known by various names such as GB, geeb, bucket bong, or waterfall bong.
How Does a Gravity Bong Work?
A gravity bong works by creating a vacuum between two chambers with water as a sealant in the middle. The larger chamber is usually a plastic bottle with the top cut off, and the smaller chamber is another plastic bottle with the bottom cut off and an opening for the cap at the top. A bowl with a small opening at the bottom is attached to the smaller bottle where the cap would be, filled with herb and lit.
As you pull the top chamber out of the water, it creates negative air pressure between the two chambers that pulls air through the bowl, filling the space with smoke. Gravity is what keeps the water in place at the bottom for you to pull against to create the vacuum. Once the vacuum is filled with herb smoke, the bowl is removed, and you can inhale the hit. Normal inhalation will pull the smoke out at a comfortable pace (and draw water up), but if you push down, the smoke will be forced out, assisting the hit.
Why Use a Gravity Bong?
There are many benefits to using a gravity bong. Here are some of them:
- It’s cost-effective: You can make a gravity bong with just a few household items, and you don’t need much herb to get high.
- It’s efficient: A gravity bong delivers a powerful hit of THC that may be too much for an inexperienced smoker, but perfect for those who want to get elevated quickly.</li
