How to Make a Gravity Bong That Will Rip

Making a gravity bong—or water bottle bong—is easy. All you need is a few common household materials and you’re good to go. Here’s a step-by-step for how to make a gravity bong at home.

Materials:

• 1 clean and empty two-liter plastic bottle
• 1 clean and empty one-liter plastic bottle
• 4X4 inch piece of aluminum foil
• Knife (for puncturing)
• Toothpick
• Scissors

Directions for a DIY Gravity Bong:

• Use a knife to puncture a hole in the bottom third of your one-liter plastic bottle.
• Use your knife to evenly cut off the bottom one-third of the bottle.
• Next, use your knife to puncture a hole in the top third of your two-liter plastic bottle.
• Use your knife to cut off the top one-third of your two-liter bottle.
• Unscrew the cap on the small bottle.
• Use your knife or another puncturing device to make a hole in the center of the bottle cap.

• Slide the bowl piece through the hole in the bottle cap
• Screw the bottle cap back onto the small bottle.
• Next, place the small bottle into the base of the large bottle.

How to Make a Gravity Bong Bowl

Want to cut down on hazard when constructing a do-it-yourself water pipe? It’s easy to make a gravity bong bowl with either a standard glass bowl piece or a small socket. Here’s the step-by-step for putting together a solid piece.

Materials:

• Plastic bottle cap
• Knife or sharp object (for puncturing)
• A small tapered socket or small glass bowl
• Lighter

Directions for a DIY Gravity Bong Bowl:

• Use your lighter to heat the tip of your knife or other piercing object.Use the heated tool to poke a hole in the plastic bottle cap.
• Once your hole is poked, use your tool to widen the hole to a size big enough to slide the tapered socket snuggly into the fitting. If you do not have a socket and would like to use a glass bowl instead, simply cut the hole large enough to securely fit the stem.

• Use your lighter to gently melt the plastic opening you have cut in the bottle cap. This will help prevent any leakages and ensure a tight fit. 
• Before the bottle cap cools, slide the tapered end of your socket or glass bowl through the hole.
• Let your creation cool before use. You now know how to make a gravity bong bowl!

How to Use a Gravity Bong

Once your homemade gravity bong is complete, you’re ready to smoke. Using a gravity bong is easy. After all, physics does all of the work for you. Once your piece is constructed, follow these simple steps for successful smoking out of a gravity bong:

• Fill up the large bottle base until the small bottle is submerged and the waterline reaches about two inches below the bowl.

• Fill your bowl with bud and light.

• As you light, begin to slowly pull upwards on the small bottle. The chamber should begin to fill with smoke.
• Continue pulling upwards until you have collected your ideal amount of smoke.
• When you’re ready to inhale, unscrew the bottlecap bowl and quickly inhale the smoke out of your DIY gravity bong while pushing down on the smaller chamber.

As a word of caution, it may be wise to have a glass of ice water and some throat lozenges nearby. Gravity bongs can collect far more smoke than the standard water pipe. As such, smoking from a gravity bong can be a little rough. Being prepared for coughing in advance will save you from some discomfort.