What is the purpose of the ash catcher on a bong?

• An ash catcher attaches to your piece where the bowl would normally go and provides a new location for your bowl. As the name suggests, it provides a chamber for ash to collect in to prevent it from collecting and building up in your main piece.
• Glycerin coils are freezable bong parts that provide an alternative to the classic method of adding ice to the neck of your water bong. While ice catchers in bongs are helpful, when ice melts it raises the water level in the base and proves detrimental to the bong’s function.
• If you do own a Freeze Pipe bong or piece with a glycerin coil on it, make sure that you put this part in the freezer for at least 1-hour before your smoke sesh. It’s okay to leave the glycerin coil in the freezer for 1-hour or in between sessions.

  What many people don’t know, however, is that glycerin is a much more effective and convenient way to smooth your smoke. Your bong won’t wind up overflowing with excess water from rapidly melting ice. Of the many various techniques – adding ice, ash catchers, cold water, etc.