What is the purpose of a pool skimmer?

The purpose of a pool skimmer is primarily to remove floating debris from the water surface. Skimmers are designed to effectively capture leaves, insects, and other floating particles before they sink to the bottom of the pool. This not only helps to keep the pool visually appealing but also plays a crucial role in maintaining water quality. When debris is allowed to remain in the water, it can contribute to algae growth and other water quality issues, necessitating additional cleaning and chemical treatments.

While circulation of water is important for pool maintenance and can be achieved through pumps and filtration systems, the specific function of a skimmer revolves around surface cleaning. Adjusting water chemistry and monitoring temperature are functions covered by other systems, such as chemical treatment systems and thermometers, respectively. Therefore, the key function of a skimmer as a tool for removing debris makes this answer correct.