What is a water pipe riser primarily used for?

A water pipe riser is primarily used for carrying water to upper levels in a structure. It serves as a vertical piping system that transports potable water from the lower levels of a building to the upper floors, ensuring that all areas of the structure have access to water supply. The riser is an essential part of plumbing systems in multi-story buildings, allowing efficient distribution of water to various fixtures and faucets located at different heights.

While collecting wastewater is an important function of other types of plumbing pipes, risers specifically focus on the delivery of fresh water. The distribution of hot water is typically handled by separate systems that may branch off from a riser, but the primary function of the riser itself is to provide cold or hot water as needed to the higher levels. Additionally, the connection between the water main and the street pertains to the service line, rather than the vertical transport function of a riser, making it distinct from the role of supplying water vertically within a building.