What is a common cause of pressure loss in a distribution system?

A common cause of pressure loss in a distribution system is related to leaks, blockages, or undersized piping. When there are leaks in the distribution system, water escapes, leading to a reduction in pressure. Similarly, blockages can hinder water flow, causing a buildup of pressure upstream but a loss downstream. Furthermore, using undersized piping can restrict flow rates and lead to increased friction losses, contributing to pressure drops throughout the system.

The other factors listed, while they can affect system performance, are not as direct or common in causing pressure loss. Faulty pressure regulators primarily affect the regulation of pressure rather than causing significant pressure loss across the entire distribution system. Excessive water temperature can impact system efficiency but is not a common direct cause of pressure loss. Poorly designed water treatment plants may cause issues in water quality or efficiency, but do not typically lead to pressure loss within the distribution network itself.