Best Gravity Bong

DIY gravity bongs are incredibly easy to produce. All you need is a water receptacle, a smoke receptacle, a bowl, and a mouthpiece. To make your own gravity bong, poke a hole or remove the bottom of a bottle, add a removable bowl to the mouth of the bottle, then submerge the bottle into the water without wetting the bowl. Light the bowl as you pull your smoke receptacle upwards, allowing it to fill with smoke as you do. Once filled, remove the bowl, push the smoke-filled chamber downward, and inhale the smoke as it shoots out of the mouthpiece. Check out the AC Greebs Smoking Steel removable bowl for an easy DIY gravity bong solution.

Source: https://americanmarijuana.org/best-gravity-bong/