What is the primary function of a service lateral in a water distribution system?

The primary function of a service lateral in a water distribution system is to connect a customer's service meter to the main water line. This connection allows water to flow from the main supply line directly to individual homes or businesses, ensuring that customers have access to potable water. Service laterals are typically designed to carry drinking water and are crucial components in the overall infrastructure, bridging the connection between the public water supply and private residential or commercial facilities.

Each service lateral is usually sized appropriately to accommodate the expected demand from the connected building, ensuring that adequate flow and pressure are maintained. This aspect of the water distribution system is essential for the efficient delivery of water to meet consumption needs. The other options, while relevant to the broader context of water distribution, do not pertain to the specific function of service laterals.