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S3E16 Pressure Testing Our Drain-Waste-Vent Pipes
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A drain piping system undergoes a pressure test to check for leaks. The inspector evaluates the system under pressure using components like bushings and gauges. Two methods are available: air pressure, which is easier for inspection, and water, which is more rigorous. Leak detection focuses on joints and plugs, followed by repairs and retesting to ensure integrity. The process concludes with the inspector's approval to finalize plumbing work.
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