A pool skimmer is a device used to remove debris from the surface of a swimming pool. It typically consists of a floating or stationary unit that collects leaves, insects, and other floating materials. The skimmer works by drawing water into its basket, where the debris is trapped, allowing clean water to return to the pool. Most pools are equipped with a built-in skimmer, which is connected to the pool's filtration system. Regularly cleaning the skimmer basket is essential for maintaining water clarity and preventing clogs in the pool filter. Proper maintenance of the skimmer helps ensure a safe and enjoyable swimming experience.