What is tuberculation in water mains?

Tuberculation in water mains refers specifically to a buildup that occurs primarily due to the oxidation of iron and the formation of rust from corrosion processes. This phenomenon involves the development of small, tubercle-like structures on the internal surfaces of pipes, primarily within cast iron mains. These tubercles consist of oxidized iron and other chemical compounds, which can impede water flow and affect water quality.

The nature of tuberculation indicates that it is not merely an accumulation of rust, but a process that results in the formation of these rough, protruding structures. The presence of tuberculation can lead to localized blockages, pressure losses, and may also harbor bacteria, affecting the overall health of the water system. Understanding this definition is crucial for water treatment professionals in managing and maintaining the integrity of water distribution systems.