What is the purpose of pressure testing newly installed water mains?

The purpose of pressure testing newly installed water mains is to ensure integrity and reveal any leaks. This testing is critical because it helps verify that the installed pipes can withstand the expected operational pressures without failing, which is essential for the safe and reliable distribution of water. By applying water under pressure, operators can identify weak points or flaws in the system, which might lead to leaks or breaks once the mains are put into service. Detection of these issues prior to the full operation helps prevent potential water loss, contamination, and service interruptions.

Evaluating flow rates or measuring total capacity are important aspects of water distribution systems but are not the primary focus during the initial testing of newly installed mains. Additionally, checking for water taste does not pertain to structural integrity or leak detection, making it irrelevant in this context. The pressure test is a critical quality assurance step that ensures the system operates as intended over its lifespan.