How to Use a Bong
Learn the steps to properly use a bong for a safe and enjoyable cannabis experience.
What a percolator bong is
A percolator bong is a water pipe with one or more internal glass chambers that break smoke into small bubbles as it passes through water. Each chamber is a perc. The point is surface contact. More bubbles mean more smoke touches water, which cools the hit and traps some ash and resin before the smoke reaches your mouth. A plain bong has one downstem and one water chamber. A percolator bong adds extra chambers stacked between the bowl and the mouthpiece.
How percolation works
Smoke leaves the bowl, drops through the downstem, and enters the first water chamber. A perc splits that single stream into many small bubbles. Small bubbles have more combined surface area than one large bubble, so the water absorbs more heat and catches more particulate. The smoke then moves to the next chamber and repeats the process. More percs mean more chances for the smoke to cool and for ash and resin to drop out of the stream.
Diffusion vs. percolation
Diffusion is the broad term for pulling smoke through water. Percolation is the specific job of the internal chambers. A diffused downstem does part of that work at the entry point. Percs continue it higher in the tube.
Common percolator styles
- Tree perc: several vertical arms with slits. Wide bubble spread, moderate drag.
- Showerhead perc: a cylinder with small holes around the base. Even diffusion and light pulls.
- Honeycomb perc: a flat disc with many holes. Strong filtration, more resistance.
- Inline perc: a horizontal tube with slits along the side. Smooth hits with low drag.
- Matrix and turbine percs: high hole counts and angled slits. Heavy diffusion, heavy cleaning work.
What a perc changes
- Cooler smoke. More water contact lowers the temperature at the mouthpiece.
- Less harshness. Ash and some tar stay in the water.
- More drag. Each chamber adds resistance, so a five-perc tube pulls harder than a plain beaker.
- More cleaning. Small holes clog with resin and need regular attention.
- More break points. Thin internal glass is fragile.
A percolator does not make smoke safe. Combustion still produces carbon monoxide, tar, and other compounds that water does not remove.
How to use a percolator bong
- Fill the base with water until the downstem is submerged.
- Add water to each upper chamber only to the level the perc needs, just above the slits.
- Insert the bowl and pack a small, ground load.
- Light the edge of the bowl and draw at a steady rate.
- Pull the bowl or slide to clear the tube.
- Dump the water after each session.
How to clean a percolator bong
- Empty the water and rinse with warm tap water.
- Pour isopropyl alcohol and coarse salt into the base.
- Seal the openings and shake in short bursts.
- Tilt the tube so the alcohol reaches each perc.
- Rinse with warm water until no residue remains.
- Air dry upright before storage.
Skip harsh abrasives and hot water on cold glass. Both can crack thin percs.
Buying checklist
- Glass thickness of 5 mm or more for daily use.
- No more than two or three percs for a balance of smoothness and airflow.
- A removable downstem and bowl for easier cleaning.
- A straight or beaker base for stability.
- A joint size that matches your accessories.