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How To Make A Gravity Bong Step By Step

What Are Gravity Bongs And How To Make One

Smoking joints and bowls can get a little dull when you’ve been consuming a while. One way to spice up your smoking experience is with a grav bong. If you’re wondering how to make a gravity bong yourself, you’ve come to the right place. 

We’re going to cover exactly what a gravity bong is and the physics behind it. You’ll love how it gets you higher and the many benefits. There are some precautions of hitting a grav bong, but nothing too serious. 

Read on to find out how to make a gravity bong and, more importantly, how to use it. Let’s get to it. 

What is a gravity bong? 

Gravity bongs rose in popularity during the 90s and have been a popular way to get extremely high ever since. Also known as geeb, GB, jib, and gebbie, it uses gravity and water displacement to vacuum a large amount of smoke for you to consume.

Don’t know how to make a gravity bong? It’s not a super fancy way to smoke as you only need a few items that you already have lying around your home. Veteran weed smokers love using gravity bongs because you get the whole bowl in one hit, making you insanely buzzed instantly.  

How does a gravity bong work

Although you don’t need to be a scientist to make and use a gravity bong, it’s all about physics. You use water and gravity to suck smoke into the vessel. It creates a vacuum effect by removing the air from a space with a rapid flow of fluid and reducing the pressure

As a result, you get a thick amount of smoke to consume with no excess air. The hit is clean and powerful. 

Bong DIY

Gravity bongs benefits

A gravity bong has many benefits to simply smoking a joint or pipe

When you’re a veteran stoner, your THC tolerance increases, and you’ll either need stronger weed or to consume a lot more of it. A gravity bong intensifies your experience as you get a potent hit. You won’t need to upgrade the quantity or THC level of your cannabis with one of these stoner essentials. 

You can create a DIY gravity bong to let your creative juices flow. Perhaps you’re starting to feel bored by smoking the same way every day or you and your friends need an activity to do together. At your next smoke club, get together and see who can make the best gravity bong. 

As you pass a joint, the herb is still burning, which means you’re losing weed. The vacuum effect that happens when using a gravity bong ensures less smoke is lost. All of the air escapes, leaving you with pure marijuana on the inhale. If made well, no fumes should escape. 

The main benefit of gravity bongs is that you can consume a whole bowl of weed in one shot. You get insanely high in minutes, and you won’t be pulling drags all night long. 

Do gravity bongs get you higher?

Put bluntly, yes. Since the physics of gravity bongs create a highly concentrated smoke, you get much higher with one than other forms of consumption. All at once, your lungs are hit with a powerful punch of THC. This amount would usually be smoked over an hour spaced out with a few hits. 

If you’re a novice consuming marijuana, we suggest holding off on using a gravity bong until you can handle it. Even seasoned users can be sent to an out-of-this-world euphoric high using a grav bong. 

Are gravity bongs bad for you?

Marijuana itself isn’t bad for you and is often used as medicine for its beneficial properties. The act of smoking can cause lung and throat problems because of the chemicals created through combustion. Gravity bongs also often use plastic, which, when heated, is hazardous to your health

If your DIY gravity bong uses single-use plastic bottles, they contain polyethylene terephthalate, PET, which release chemicals when heated. Then, you consume the chemicals when you take a hit from the gravity bong. 

To reduce adverse health effects, you should only use a DIY gravity bong for one smoke session and make a new one for next time.

How to make a gravity bong step by step

Now that we’ve gone over the technical stuff, let’s get into making a gravity bong of your own. There are a few different ways to make a homemade gravity bong, and we’re going to go over them all. 

Cheap gravity bong

You can make a gravity bong with all recycled items or things you already have at home, so it costs almost nothing. These are the materials you need: 

  • 16 to 20 oz. plastic bottle, cleaned
  • 2-liter plastic bottle, cleaned
  • Scissors 
  • Aluminum foil
  • Pin
  • Water

When you have your supplies ready, these are the steps to follow for your cheap gravity bong. 

  1. Start by cutting off ¼ of the smaller plastic bottle’s bottom.
  2. Continue by trimming the top ¼ off the larger bottle. 
  3. Take the cap off the smaller vessel and cut a 1-inch hole in the bottle cap. 
  4. Put tin aluminum foil over the cap and top half of the smaller bottle. 
  5. Mold the aluminum foil into a bowl shape. 
  6. Poke 5 to 10 small holes into the foil with the pin. 
  7. Fill ¾ of the larger plastic bottle with water. 
  8. Submerge the smaller bottle, with the aluminum foil side up, into the water. There should still be a small area of air in the small vessel. 
Cheap gravity bong

You’ve got yourself a cheap, practically free DIY gravity bong. It doesn’t take rocket science or any fancy tools to make one. Remember, only use this type of gravity bong once to avoid consuming the harmful chemicals of plastic. 

Bucket bong

The bucket bong is the same concept as what we just described but uses higher quality materials. Let’s have a look at what you need to make your very own.

  • A reusable polypropylene plastic bottle with a screwable top 
  • Bucket, or larger plastic container
  • Box cutter or saw 
  • Drill 
  • Downstem bowl 
  • Water 

Here’s how to construct your own bucket bong. 

  1. Cut the bottom ¼ of the reusable plastic bottle. 
  2. Drill a hole into the cap of the reusable bottle. The hole needs to be the same diameter as the downstem bowl. 
  3. Place the downstem bowl into the cap. 
  4. Fill the bucket ¾ filled with water. 
  5. Submerge the bottle, with the downstem bowl side up, into the water. There should still be a small area of air in the bottle. 

Polypropylene is a food-safe plastic that has a high melting point, giving it thermal resistance. Using this type of plastic ensures you’re not consuming chemicals and can be used for your gravity bong over again. 

A downstem bowl is a manufactured smoke device used in other types of bongs. Using one of these gives you better results because it’s designed for smoking weed, unlike a DIY foil bowl. 

You can use your downstem bowl over and over again; make sure you clear it out, so it doesn’t become clogged. 

If you’re willing to spend some money, we suggest using higher quality materials. It’s not only safer but more efficient and can be used more than once. 

Waterfall bongs

A waterfall bong still uses water and plastic bottles, but the setup is a little different. Typically this type is messier but equally powerful. You can make a waterfall bong with cheap recycled items or with higher quality materials. Follow the instructions for both. Let’s look at what you need. 

  • Plastic water bottle with screwable cap (single-use or reusable, you decide)
  • Scissors or drill 
  • Downstem bowl or aluminum foil
  • Water

Construct your waterfall bong with these steps: 

  1. Make a hole in the cap of the water bottle. 
  2. Put the downstem bowl in the hole or form the aluminum foil bowl with tiny holes around the cap. 
  3. Drill a hole in the bottom of the water bottle. Make sure the hole isn’t too big–you need to be able to cover it with a finger. 
  4. Put your hand on the whole and fill the bottle with water. 
  5. Screw the cap with the bowl on the bottle.

Waterless bong

You might be wondering how to make a gravity bong with no water. A parachute is a waterless bong and a portable way to get the same type of hit as a traditional grav bong without the H20. 

Here are the materials you need for your DIY waterless gravity bong.  

  • 2-liter plastic bottle with screwable cap (reusable or single use)
  • Duct tape
  • Scissors or drill 
  • Plastic bag 
  • Downstem bowl or aluminum foil 

Now let’s look at how to construct a waterless gravity bong. 

  1. Take the 2-liter plastic bottle and cut the bottom ¾ of it off. You should be left with ¼ of the cap side. Throw away the bottom half; you won’t need it for your gravity bong. 
  2. Duct tape the bag to the bottom of the plastic bottle with the cap. Make sure it’s well sealed, and no air or smoke can escape. 
  3. At the bottom of the bag, make a handle out of tape, so you can easily pull the bag up and down. 
  4. Make a hole in the cap of the water bottle. 
  5. Put the downstem bowl in the hole or form the aluminum foil bowl with tiny holes around the cap. 
  6. Unscrew the cap and suck out as much air as you can. 
  7. Screw the cap with the bowl back on. 

Although there’s no water, you still create a vacuum effect when you suck out all of the air. The benefits are that waterless gravity bongs are more portable and less messy

These are more fragile, though, as one small rip to the plastic bag or a broken tape seal will ruin your gravity bong. 

How to use a gravity bong

We’ve gone over the benefits and how to make them; now it’s time to discuss using a gravity bong. The bucket, waterfall, and waterless bongs all have slightly different techniques. Let’s break down each one. 

Bucket bong

Your bucket bong should be submerged in the bucket of water. Place the weed into the bowl and light it. 

As the plastic bottle fills with smoke, you need to pull up, letting more fumes in slowly. Continue doing this until the whole plastic bottle is filled with thick smoke.

Make sure the end of the vessel never leaves the water because then the smoke will too. When you’re ready, remove the cap of your bucket bong and quickly suck in the marijuana fumes.

Bucket bong

Waterfall bong

For a waterfall bong, put your finger at the bottom of the bottle. You need to stand over a sink, in the tub, or place something under you to catch the water. 

Once you’re in a good spot, fill the bowl with marijuana and light it. Remove your finger to allow the water to flow out the bottom of the bottle. 

As the liquid leaves, the smoke gets dragged down, filling the plastic bottle. Put your finger over the hole again when all the water’s gone, so you don’t lose any precious smoke. 

Remove the cap and place your mouth over the opening. Take your finger off and suck in the thick fumes. Within minutes, you’ll be on cloud 9. 

Waterless bong

When you’re sure there’s no air in the waterless gravity bong bag, fill the bowl with weed and light it up. 

Slowly pull on the tap, so the suction pulls the smoke into the bag. When it’s filled, unscrew the cap and pull in the fumes. You get the same impact as a traditional gravity bong, and you’ll be flying high.  

The final attraction to gravity bongs

If you want to spice up your smoking experience, we suggest trying out a gravity bong. It’s a vessel that uses gravity and water displacement to give you a huge hit all at once

Gravity bongs are great for experienced consumers, a fun DIY project, help reduce smoke loss, and give you a full bowl’s worth of fumes in one go. You get higher with a gravity bong, but you need to be careful of harmful chemicals from heating plastic. 

You can easily make a cheap gravity bong, bucket bong, waterfall bong, or waterless bong. After you’ve made yours, light it up and let physics do the work. 

Now you know everything about gravity bongs, we’re sure you want to try one out for yourself. Buy cannabis seeds from Homegrown Cannabis Co. to produce a high-quality harvest for your next smoke session.

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