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making a waterfall bong

Making a waterfall bong

At this point, your bong, including downstem and bowl, is all ready to go and it’s time to fill your container with water. Don’t fill it all the way to the top, as you will eventually push the plastic bottle down into the water and you want to avoid spilling.

Begin by cutting a small hole in the bottom of the plastic bottle. It should be large enough to allow water to flow out of easily, but small enough to cover with your finger.

Lift the bottle up enough that it pulls all the smoke down into the bottle but does not fully emerge from the water.

  • An empty plastic bottle
  • A container filled with water (it needs to be larger than your plastic bottle, as you’ll eventually need to push the plastic bottle down into the container of water)
  • Scissors or box cutter
  • Drill
  • Downstem and bowl, or alternatively, aluminum foil

Make the Bong (Photo by: Gina Coleman/Weedmaps)
Get Ready to Smoke (Photo by: Gina Coleman/Weedmaps)
You can make a bowl using a piece of aluminum foil. Fold a square piece of foil and place it over the top of the empty bottle. Gently press down with your fingertips to create a slight bowl shape and use a paperclip, toothpick, or some other tool to poke several small holes in the foil.

Once the water in the bottle is replaced with smoke, quickly place your finger back over the hole on the bottom of the bottle to trap the smoke. When you’re ready to take a hit from your waterfall gravity bong, simply remove the downstem and bowl, place your mouth over the bottle opening, remove your finger from the hole in the bottom of the bottle and inhale.

How to Make a Gravity Bong A gravity bong can be an excellent smoking choice whether you’re in a pinch and need a makeshift way to smoke or if you simply want to mix up your typical smoking

Making a waterfall bong

Many homemade bongs or smoking devices are made using single-use plastic bottles, which contain PETE or PET (polyethylene terephthalate) that can release chemicals when heated (like how the water from a bottle that’s been left in a hot car can taste odd). You may pull these chemicals into your lungs when applying heat to your gravity bong.

You can reuse the foil in your gravity bong. Don’t worry about changing it unless you rip the foil or if the holes get clogged and prevent adequate ventilation, at which point you should swap it out with some new foil.
If you’re new to cannabis or have a low tolerance, you probably don’t want to start with a gravity bong. But for intermediate to advanced consumers, making a gravity bong is a fun, easy DIY project that ensures a fast delivery of your favorite strain. Not the crafty type? You can buy gravity bongs to add to your collection of hardware and bust one out whenever you want a unique and potent smoke session.

Wrap the cap in aluminum foil, shaping the foil to create a small “bowl” divot for your cannabis. You can shape the bowl to be as deep as you’d like, and the foil will keep your cannabis from falling into the water below. You may need to cut off excess foil and shape it to avoid spilling cannabis. Health hack: if you’re looking to spare your lungs, try this metal bowl piece specifically designed to be used for gravity bongs.
The cannabis smoke will be cooler, having been filtered through the water, but it will deliver a powerful hit of THC. For best effects, prepare yourself and don’t force yourself to inhale too much smoke. This has the potential to make even the most veteran of cannabis consumers cough, so proceed with caution!
Load cannabis strains of your choice into the foil-wrapped bottle cap, but don’t screw the cap on yet.

  • Plastic bottle (any size, but 16-20 oz is ideal)
  • Bucket or 2-liter plastic bottle
  • Aluminum foil
  • Box cutter or sharp knife
  • Poking device
  • Cannabis strains of your choice (at least one gram)

Here’s the tricky part: Submerge the smaller bottle in the filled bottom half of the larger bottle (or bucket) until just the cap remains above water. Carefully screw the foil-wrapped bottle cap back onto the bottle.

Use your sharp poking tool to make holes in the aluminum foil. Be careful not to rip the foil! You’ll need about 3-5 holes for proper ventilation.

Find out what a gravity bong is, how it works, and follow our easy steps to make your own homemade gravity bong from a water bottle.