What is the primary function of pool skimmers?

The primary function of pool skimmers is to remove debris from the water surface. Skimmers are designed to capture leaves, insects, and other floating contaminants before they sink to the bottom of the pool. By drawing water in from the surface, skimmers not only help maintain a clean appearance but also contribute to the overall health of the pool by allowing filters to effectively remove these impurities. A clean surface facilitates better chemical balance, as the surface is where many contaminants can affect water chemistry.

The other options relate to different aspects of pool maintenance but do not define the specific role of skimmers. Heating, chemical distribution, and water flow regulation are important for pool operation but are handled by distinct components like heaters, chemical feeders, and pumps.