What is the purpose of a flushing test in a piping system?

The primary purpose of a flushing test in a piping system is to remove debris and sediment that may have accumulated within the pipes. This is crucial for ensuring that the system operates efficiently and effectively, especially in fire service mains, where any blockage can hinder the performance of the system during an emergency. Flushing the system helps to clear out any particulate matter, ensuring that water can flow freely and that valves, hydrants, and other components operate as intended.

While others might think that the flushing process could relate to verifying system integrity or measuring flow, those tasks are generally approached using different testing methods or protocols. The flushing test specifically focuses on cleanliness and operational readiness by providing clear, uncontaminated water in the system.