The answer to 'how long does drain trap last' is that a properly installed and maintained drain trap can typically last for 10-15 years or more. Drain traps are the curved pipe section under sinks, tubs, and showers that creates a water seal to prevent sewer gases from entering the home. They are an essential plumbing component, but they can wear out over time due to corrosion, clogs, and physical damage.
The lifespan of a drain trap depends on the material it's made of (usually PVC, metal, or rubber), the quality of the installation, and how much use it gets. Traps in high-traffic bathrooms may need to be replaced more often than those in less-used areas. Regular inspection and cleaning can also extend the trap's useful life. When a trap becomes cracked, leaky, or otherwise damaged, it's important to replace it promptly to prevent water damage and sewer gas leaks.