How to Make (and Use) a Gravity Bong

How to Make (and Use) a Gravity Bong

Posted by Puffr ,28th Jul 2023

Smoking weed brings a lot of people a lot of pleasure. But the fact is weed these days isn't cheap. And if you want to enjoy that weed in something other than joint form you're going to have to shell out even more money. In the case of high-quality bongs and heady glass, potentially a lot more money. But what if you don't happen to be swimming in disposable cash at the moment? How can you get the most from your weed without dipping into your vacation money? The answer is the gravity bong. In this post, the team at the Puffr wholesale head shop will go over the process of making a gravity bong and explain how to use it. Enjoy.

The Gravity Bong: What is It?

A gravity bong employs a couple of empty plastic bottles, a bit of ingenuity, and the laws of physics to create monster rips. There’s nothing fancy about it and you won’t find it on sale at our smoke shop. It’s a kind of customized bong in the sense that no two are necessarily going to look alike, but not the kind of custom bong that is going to win any beauty contests.

No one is sure who invented the gravity bong. Chances are it was some cash-strapped stoner who was just messing around with different things that were at hand and stumbled upon the design by accident. But whoever is responsible, weed lovers on a budget everywhere owe that person a debt of gratitude.

With the gravity bong (also referred to as a “geeb”) a small plastic bottle with its bottom cut off and a bowl attached to the mouthpiece is partially submerged in water that’s being held by a large plastic bottle with its top cut off (for the record a bowl with high sides or a small bucket will work in lieu of the large bottle).

As the person lights the cannabis in the bowl they pull the small bottle upward which, in turn, forces air through the bowl creating smoke that gathers in ever-enlarging empty space between the water level and the bowl. When the small bottle is filled with smoke the bowl is removed and the person inhales the smoke through the mouth of the small bottle.

It’s not rocket science but it does rely on several scientific principles to achieve its results.

How to Make a Gravity Bong

The gravity bong is the ultimate DIY customized water pipe for the enterprising stoner and, when done right, it’s capable of producing such monster hits that you may find it quickly becomes one of your favorite ways to get high. That said, here’s how you make it:

What you’ll need

  • Large plastic bottle (ideally a 2-liter bottle)
  • A smaller plastic bottle with a cap (small enough to fit inside the large bottle)
  • Razor knife or scissors
  • Aluminum foil to fashion a bowl
  • A toothpick

How you make it

  1. Cut about 1/4 off the top of the large bottle and 1/4 off the bottom of the smaller bottle. Be careful with that razor knife or scissors!
  2. Cut a hole into the cap of the smaller bottle. This hole is going to be where you insert the bowl. If you’re having trouble cutting a hole into the cap you can try melting a hole using a standard lighter. Just be careful.
  3. Create a bowl using aluminum foil. It doesn’t have to be some kind of fancy-pants bowl. Just good enough to hold an adequate amount of herb. And it should have a short stem that can fit through the hole in the cap.
  4. When you’ve finished shaping the bowl use the toothpick to punch some holes into the bottom of it where there would normally be a screen.
  5. Now the fun begins. Fill the large bottle with water up to the point that, when you insert the small bottle to the bottom, the water level will be at the point where the small bottle curves inward at the top.
  6. Now place the small bottle into the water in the large bottle. Once it’s all the way in, screw on the cap and then insert the bowl. Fill the bowl with your favorite cannabis (or whatever’s available). If you want the weed to burn nice and even make sure you grind it first.
  7. Spark up your lighter and place it against the herb. As you do, lift the small bottle upward out of the water (slowly, and not all the way mind you).
  8. As you (slowly) lift the bottle the vacuum inside between the water level and the cap will force air to be pulled through the bowl burning the herb and filling the space inside the small bottle with smoke.
  9. Stop lifting the small bottle before you pull it all the way out of the water. By now, it should be full of smoke so put down the lighter, remove the bowl from the cap, place your mouth over the cap, and inhale as you push the small bottle back down into the water.

The whole thing will take some practice, but you should be able to master it after only a couple of tries. Also, if you want a high-quality bowl you can always buy one from our online head shop. But it's up to you. The aluminum foil one should work fine.

The Benefits of the Gravity Bong

Although it is the lowest of low-tech cannabis consumption devices there are nonetheless several advantages to using a gravity bong:

  • You’ll save money compared to buying an expensive bong or heady glass.
  • The hits you’ll achieve from your gravity bong will put anything you can get from a glass pipe, joint, and most standard bongs to shame.
  • You’ll be repurposing those plastic bottles instead of just adding them to the Pacific Garbage Patch.
  • You’ll get high as a kite as quick as a whistle.
  • You’ll impress your friends with your quick-thinking ingenuity.

It should be noted that smoking out of plastic bottles is not a good idea long-term. While it’s a fine short-term solution it’s possible that over the long haul the heat involved will release chemicals in the plastic that you probably shouldn’t be inhaling. So once you’re able, bite the bullet and go get yourself a nice custom bong from our wholesale smoke shop.

Check Out Our Wholesale Head Shop

If you’re looking for a new bong, customized glass pipes, or any other type of cannabis-related accessories you’ll find everything you need at the Puffr online head shop. Check it out today and give that gravity bong a rest.