Base (bong)

A base (no. 3 at the picture) is a component of bong, which holds the water, is usually wider than the chamber so it can stand-alone without tipping (see the consequences of a spillage.) The bottom of the stem sits in the water, on an angle. The opening at the bottom of the stem must be underwater to bubble the water. The water temperature will affect the temperature of the smoke inhaled (e.g. a bong with water and crushed ice as a filter will allow the user to inhale cooler smoke, providing a less harsh experience). Some bongs also have a removable, water-tight base, for easy changing of the bong water.