A purged line in plumbing refers to a water line that has been cleared of air, contaminants, or stagnant water by allowing fresh water to flow through it. Purging is done to ensure that the water is safe, clean, and free from debris, rust, or sediment that could affect water quality or damage fixtures. This process is commonly performed before using newly installed pipes, after repairs, or following periods of disuse. Regular purging of lines, especially in systems with low usage or long horizontal runs, helps maintain water quality, prevent clogging, and ensure efficient operation.
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