DIY Guide: How to Make a Gravity Bong

If you’re looking for an easy, inexpensive way to get high, look no further than the gravity bong. A gravity bong is a simple device that uses air pressure and water to create an incredibly strong hit of marijuana smoke. The result? An intense high in just one or two hits! The best part about making your own gravity bong is that it’s relatively simple and requires few supplies. So if you’re feeling adventurous, read on for our guide on how to make a gravity bong.

To make your gravity bong, you’ll need: two 2-liter plastic bottles, scissors or utility knife, aluminum foil (or mesh screen), grinder (optional), and cannabis flower. With these materials in hand, you’re ready to start building your gravity bong! Let’s dive into the process step by step.

Step 1 – Preparing Your Bottle

The first step is to prepare your bottle. Take one of the 2-liter bottles and cut off the bottom third with either a pair of scissors or a utility knife. This piece will act as your bowl/chamber for smoking from later on. Once this is complete, set aside the top portion of the bottle and move onto Step 2!

Step 2 – Creating Your Bowl

Next up we’ll be creating our bowl chamber using aluminum foil or mesh screen. Take some aluminum foil (or mesh screen) and shape it into a bowl shape that fits snugly into the opening at the end of your bottle piece. You can also use an old pen cap if it fits better than other items mentioned above. Then poke several small holes in the center of your bowl so smoke can pass through when using it later on.

Step 3 – Grinding Your Cannabis Flower

Now that we have our bowl prepared it’s time to grind up some cannabis flower before packing it into our reservoir chamber created earlier in Step 1! Depending on whether you want coarse ground flower for larger hits or finer grinds for stronger effects opt for either a manual grinder or electric grinder option respectively. Either way once everything is finely ground its time to move onto Step 4!

 Step 4 – Filling Up Your Bottle Chamber

With everything else prepped now comes filling up our reservoir chamber with our freshly ground cannabis flower from earlier in Step 3 . To do this simply fill up your cut-off bottle piece with cannabis until ¾ full then tightly screw back together with its original lid onto the remaining empty 2-liter bottle half from earlier in Step 1 . Now we are almost done setting up our self made DIY Gravity Bong! Onto final steps…

 Step 5 – Submerging In Water & Smoking  

Now take whatever container filled with water that you have available such as sink bathtub etc.. submerge both halves of assembled bottle pieces under water while sucking out all air inside with mouth until only downwards facing bubbles remain , then quickly release finger from hole allowing water pressure force smoke up thru attached bowls . Finally light up herb pack within bowl while simultaneously inhaling top portion of filled reservoir chamber pushing all remaining smoke down thru connected hose towards user’s mouth thus completing entire cycle !


Making your own homemade Gravity Bong doesn’t have to difficult nor expensive if done right and following correct instructions as shown here today , provided above .. So try out yourself today and see what difference gravity makes when smoking weed !

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