What is a common cause of leaks in plumbing fixtures?

Worn washers or gaskets are a common cause of leaks in plumbing fixtures because they play a crucial role in creating a watertight seal between two surfaces. Over time, these components can become compromised due to factors such as age, temperature fluctuations, and the constant pressure of water. As they wear out, they lose their ability to effectively seal, leading to water escaping from taps, faucets, and other fixtures. This can result in noticeable leaks that may go undetected until they cause damage or increase water bills.

In contrast, while cracked pipes and corroded piping can also lead to leaks, they are typically less frequent causes in standard fixtures. Cracked pipes are often more associated with physical damage or extreme temperatures, and corroded piping usually results from long-term exposure to moisture and chemical reactions within the water supply. Excessive water pressure can create leakage issues but not specifically within the fixtures themselves. When water pressure exceeds the design specifications of the plumbing system, it can lead to stress and eventual failure; however, the immediate and common cause of leaks in fixtures usually centers around the wear and tear of washers and gaskets.