Bubble Bongs are a relatively new trend. They are marketed as a safer way to smoke marijuana, compared to bongs, which require glass attachments (which can be dangerous when broken) and the inhalation of smoke from burning cannabis. Bubble Bongs are made from single-use plastic water bottles that inflate through cold water filled in one or two chambers and air pressure created by blowing into the bottle’s mouthpiece. Once inflated, they create bubbles that also filter out tar and ash while cooling down the smoke before it travels down into your lungs.
When a round botton flask bong is created, two chambers are created from the bottom of one large bottle to the top of another bottle. One chamber consists of a smaller bottom bottle into which water is poured and then sealed by replacing the mouthpiece. This chamber is blown up using cold water and compressed air, both critical for creating a bubble.
The second chamber is located below the first. It consists of an open-ended smaller top bottle with a sealed opening that fits perfectly around the remaining part of the giant bottom bottle containing the air. When air from outside the small full bottle enters its mouthpiece, it compresses with cold water into a bubble through nucleation. As the bubbles slowly fill with air and expand through the bowl, they also filter out tar and ash from the smoke.
As you inhale steadily, the first chamber’s pressure slowly declines as oxygen begins to make its way into your lungs. Before that happens, however, bubbles begin to form in the second chamber thanks to the power of cold water (which is essential for nucleation). The problem occurs when those bubbles are ejected into your mouthpiece. That’s where the problem lies because air pressure builds up in the second chamber and pops each bubble down into your lungs. The popping noise is most likely what gives the Bubble Bong its name.
The good news is that you can use several different methods to prevent this. First, add a few extra plastic straws and cut off their ends to fit around your tubes’ grommets. Then, inflate your device for about 5 seconds, wait about 30 seconds more for it to settle down and then blow again into the mouthpiece and begin smoking as usual. This ensures that as many bubbles as possible get trapped within your lungs so they will not escape into your mouthpiece in the first place.