What is the term used for the deposit of calcium carbonate that forms in pipes?

The term used for the deposit of calcium carbonate that forms in pipes is scaling. Scaling occurs when water contains high levels of dissolved minerals, particularly calcium and carbonate ions. When the water temperature increases or pressure decreases, these minerals can precipitate out of the water and adhere to the inner surfaces of pipes, creating a hard deposit that can restrict water flow.

Scaling can lead to various operational issues, such as reduced efficiency of water systems, increased pressure requirements, and even damage to equipment over time. Recognizing and managing scaling is crucial in maintaining the integrity and performance of water distribution systems. In contrast, corrosion refers to the deterioration of metal surfaces due to chemical reactions, tuberculation relates to localized corrosion that creates masses or "tubercles" on pipes, and leaching involves the dissolution of substances from metals or soils into the water. Understanding these terms helps in effective water system management and maintenance.