What does an increase in tubercule lead to in terms of pipe functionality?

An increase in tuberculation in water pipes leads to increased flow resistance due to the accumulation of layers of corrosion products on the inner surface of pipes. Tubercules are small, often irregularly shaped, protrusions that develop as a result of corrosion processes. As these tubercules build up, they can significantly constrict the internal diameter of the piping system, creating obstacles that impede the flow of water.

This increase in flow resistance can cause a variety of operational challenges, such as reduced water pressure, inefficient system performance, and higher energy costs to pump water through the affected pipes. Managing tuberculation is essential for maintaining the functionality and efficiency of the water distribution system, as it directly impacts how well water can flow through the pipes. The other options, such as improved water flow, reduced corrosion, and improved durability are not accurate outcomes of increased tuberculation, as they suggest enhanced functionality rather than the challenges associated with increased resistance to flow.