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Gravity Bong Explained: Making One at Home

Gravity Bong Explained Making One at Home

A gravity bong, also known as a grav bong or a bucket bong, is a simple yet effective way to smoke cannabis. It uses the force of gravity and water to draw smoke into the chamber, delivering large, dense hits. Gravity bongs are easy to make at home with common household items and provide a smooth, potent smoking experience. In this blog post, we’ll explain what a gravity bong is, the benefits of using one, and provide a step-by-step guide to making your own out of a plastic bottle.

What is a Gravity Bong?

A gravity bong consists of just two main parts – a bottle or bucket filled with water, and a bowl or socket that holds the cannabis. The bottle is typically made from a 2-liter soda bottle or a large plastic container. The bowl piece can be made from metal or glass and fits securely in the bottle cap.

To use a gravity bong, you first fill the bottle with water while keeping the cap and bowl separate. The bottle is then placed bottom-side up in a sink or bucket, and the bowl is packed with ground cannabis. As you light the bowl and slowly pull the bottle up, the water drains out the bottom while simultaneously drawing the smoke down into the bottle. Once the bottle is full of smoke, you remove the bowl and inhale the contents of the bottle through the opening.

Benefits of Using a Gravity Bong

There are several key benefits that make gravity bongs a favorite way to smoke for many cannabis users:

Large hit size – The gravity bong delivers an extremely large hit, far bigger than you could inhale from a pipe or joint. This results in potent effects.

Cool, smooth smoke – The smoke gets cooled by the water as it fills the bottle, making for a very smooth hit that’s easy on the throat and lungs.

Efficient use of cannabis – You can take massive hits with only a small amount of cannabis in the bowl. Very little gets wasted.

Easy to make – Gravity bongs are incredibly simple to assemble at home with common plastic bottles.

Step-by-Step Guide to Making a Gravity Bong

Making your own gravity bong at home is a fun, inexpensive project. Here are the steps:

Supplies Needed:

  • 2-liter plastic soda bottle
  • Scissors
  • Bowl piece (glass, metal, or ceramic)

Bucket or sink filled with water


  • Cut the bottom off the 2-liter bottle using scissors. This will leave you with a tube shape for the main chamber. Remove any labels or decorations.
  • Make a small hole in the center of the bottle cap, just big enough so the bowl piece can fit snugly.
  • Fill the bucket or sink with water. The level should be high enough so that the bottle can be fully submerged.
  • Pack the bowl tightly with ground cannabis. Screw it into the bottle cap.
  • Light the cannabis in the bowl while holding the bottle upside down in the water. Slowly pull the bottle up, allowing it to fill with smoke.
  • Once the bottle is filled with smoke, unscrew the cap with the bowl and inhale the contents from the mouth of the bottle.
  • Exhale and enjoy your hit! Relight the bowl and repeat.

Tips and Precautions

Here are some tips for getting the most out of your homemade gravity bong:

  • Use cold water for smoother hits. Add ice to the water for even cooler smoke.
  • Grind up your cannabis finely for best results. The finer the grind, the better it will burn.
  • Clear the chamber fully each hit. Don’t leave leftover smoke, as it will quickly become stale.
  • Make sure no plastic is burning. Stop immediately if you notice any melting or fumes.
  • Practice good hygiene. Disinfect the bottle before and after use.
  • Never use a gravity bong near water sources that could be contaminated.

Gravity bongs provide a simple yet powerful smoking experience. Making your own from a plastic bottle is an easy DIY project for any cannabis enthusiast. With the proper precautions, you can safely enjoy big, smooth hits from a homemade grav bong.

For practical tips and advice on homegrown Cannabis, check out our posts on How Long Does It Take To Fully Grow A Cannabis Plant?Advantages of Growing Cannabis Clones Vs Seeds, and How Much Cannabis Can I legally Carry In The Canada.

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