The cold water supply to a dwelling can be identified as being from the water undertakers main by a connection to a

• A. Service pipe in the road
• B. Water meter in the garden
• C. Main line in the house
• D. Auxiliary line in the basement

Answer: (A)

The important idea here is where the public water supply ends and the house’s private plumbing begins. The water undertaker’s main lives in the street, and the dwelling is fed through a service pipe that runs from that main in the road into the property boundary. This service pipe is the connector that shows the supply comes from the public main, with the internal plumbing and the meter being downstream of that point. A water meter in the garden is just a measuring device and does not indicate the source. The main line inside the house or any basement secondary line are part of the private plumbing network fed by that service pipe.