The answer to 'how long does supply line last' is that the typical lifespan of a plumbing supply line is 5-10 years, though it can vary depending on the material and usage. Supply lines are the flexible hoses that connect water fixtures like sinks, toilets, and washing machines to the home's main water pipes. Over time, they can become worn, cracked, or damaged, increasing the risk of leaks and water damage.
The exact lifespan of a supply line depends on factors like the quality of the materials, how much water pressure it experiences, and how often it's used. Stainless steel and braided steel supply lines tend to last longer than basic rubber or plastic ones. Supply lines in high-use areas like kitchens may need to be replaced more frequently than those connected to less-used fixtures. Regular inspection and prompt replacement of worn lines can help prevent costly water damage in the home.