The answer to 'supply line replacement frequency' is that the typical lifespan of a supply line is 5-10 years, but this can vary depending on the material and quality of the line, as well as the water quality and pressure in your home. Supply lines are the flexible hoses that connect your plumbing fixtures, such as sinks, toilets, and washing machines, to the main water supply. Over time, these lines can become brittle, develop leaks, or even burst, leading to water damage and potential flooding.
It's generally recommended to inspect your supply lines every few years and consider replacing them proactively if they show signs of wear or are approaching the end of their expected lifespan. This can help prevent costly water damage and ensure the continued reliable operation of your plumbing system.