Bunghole

A bunghole is a hole bored in a liquid-tight barrel to remove contents. The hole is capped with a cork or cork-like stopper called a bung. Acceptable usage includes other access points that may be capped with alternate materials providing an air- or water-tight access to other vessels. For example, a bunghole on a combustion chamber can be used to remove slag or add coal.^[1] Bungholes can also be utilized to insert and remove sensing probes or equipment like mixers to agitate the contents within a vessel.