What is the purpose of a skimmer in a swimming pool?

The primary purpose of a skimmer in a swimming pool is to filter particles from the surface of the water. Skimmers are designed to remove debris such as leaves, insects, and other contaminants that float on the surface. By collecting this debris before it has a chance to sink to the bottom or decompose in the water, skimmers help maintain the cleanliness and clarity of the pool water, which is essential for safe swimming conditions.

Moreover, skimmers play a vital role in the pool's overall filtration system. They direct the surface water into the pool's plumbing system, leading it to the filter. This process not only clears the visible surface contaminants but also promotes proper water circulation, which is important for maintaining chemical balance and ensuring that the water is uniformly treated.

In contrast, skimmers do not heat the water, circulate it, or add chemicals directly. Those functions are typically performed by other components of the pool system, such as heaters, circulation pumps, and chemical feeders.