What is a common cause of a leaky faucet?

A common cause of a leaky faucet is worn out washers or seals. Over time, these components can degrade due to constant friction and exposure to water, leading to a loss of their sealing ability.

The washers are typically found in compression faucets, while cartridge faucets use seals that can also wear out. When these elements wear down, they no longer create a tight seal, allowing water to escape and causing leaks. Regular maintenance and replacement of washers or seals can effectively prevent these leaks and prolong the life of the faucet.

Understanding that factors like loose fittings or connections, high water pressure, and corroded pipes can also contribute to leaks is important, but the most direct and common issue with leaky faucets relates specifically to the condition of the washers or seals.