A plumbing pipe can begin leaking suddenly due to several acute triggers, including sudden water hammer pressure surges, thermal expansion and contraction from hot water usage, shifting building foundations, internal mineral corrosion scaling, or frozen pipes during freezing weather. Additionally, aging rubber slip-joint washers under sinks can suddenly rupture after years of continuous micro-vibrations from running water. Verification: Inspect exposed basement and under-sink plumbing regularly for signs of wear, bulging, or mineral buildup.
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