What is a Gravity Bong?


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.

Gravity bongs are popular among cannabis enthusiasts who want to experience a powerful and efficient delivery of their favorite strain. They can be made with a few everyday household objects, such as plastic bottles, buckets, or bowls. However, there are also store-bought gravity bongs that are more durable and safe to use. In this blog post, we will explain how gravity bongs work, how to make one at home, and what are the pros and cons of using them.

How do Gravity Bongs Work?

Gravity bongs work by submerging a small bottle with a bowl of herb on top in a larger bottle or bucket of water. While lighting the herb, slowly draw the bottle out of the water to fill it with smoke from the burning herb. Unscrew the lid, put your mouth over the bottle’s opening, and push the bottle down to let gravity propel the herb smoke into your lungs. Voila!

The reason why gravity bongs produce such potent hits is that they force heavily concentrated smoke into your lungs, filling them to capacity beyond the average hit from a pipe or joint. When you inhale the contents of the smoky bottle into your lungs, you are essentially breathing in the smoke from an entire bowl of herb in one go. For this reason, gravity bongs are certainly not for the faint of heart.

How to Make a Gravity Bong at Home?

Making a gravity bong at home is a fun, easy DIY project that requires only a few simple steps. Here’s what you need:

  • A plastic bottle (about 2 liters) for the smaller chamber
  • A larger plastic bottle or bucket for the larger chamber
  • A metal socket or bowl for holding the herb
  • An aerator screen or aluminum foil for covering the bowl
  • A knife or scissors for cutting the bottles
  • Water for filling the larger chamber
  • Herb of your choice for smoking

Here’s how to make it:

  1. Cut off the bottom of the smaller bottle and make a small hole in the cap.
  2. Insert the metal socket or bowl into the hole in the cap and secure it with tape or glue if needed.
  3. Cover the bowl with an aerator screen or aluminum foil and poke some holes in it.
  4. Fill the larger bottle or bucket with water almost to the top.
  5. Screw the cap with the bowl onto the smaller bottle and submerge it in the water, leaving some space at the top.
  6. Pack some herb into the bowl and light it with a lighter or match.
  7. Slowly lift the smaller bottle out of the water while keeping it submerged enough to prevent smoke from escaping.
  8. Once the bottle is filled with smoke, unscrew the cap and put your mouth over the opening.
  9. Push the bottle down into the water while inhaling to draw the smoke into your lungs.
  10. Enjoy!

What are the Pros and Cons of Gravity Bongs?

Gravity bongs have some advantages and disadvantages that you should be aware of before trying them. Here are some of them:


  • They deliver strong and fast-acting effects that can be ideal for medical users or seasoned smokers who need a high dose of THC.</li