👉 Dowel, also known as a dowel or downdraft pipe, is a type of pipe that is used in plumbing to connect pipes and other piping systems. It is typically made of metal or plastic and is often used for connecting two or more pipes together, creating an effective connection between them. The term "dowel" comes from the Dutch word "douw," which means "water." In the context of plumbing, dowelling refers to the process of attaching a dowel to