The cold water system pipework between the waters undertakes main and the boundary of a property is known as a

• A. Communication pipe
• B. Service pipe
• C. Distribution pipe
• D. Boundary pipe

Answer: (A)

The segment being described is the communication pipe. This is the portion of cold-water pipework that runs from the water undertaker’s main to the boundary of the property, sitting outside the building and typically handled by the water supplier up to that boundary. Inside the boundary, the ownership and responsibility usually shift to the property owner for the remaining service pipe that runs through the boundary and into the building. In some texts you might see the term service pipe used, but the designation that specifically matches the described external-to-boundary link is the communication pipe.