What is the function of a sump pump?

A sump pump is specifically designed to remove water that accumulates in a sump basin, commonly found in the basements of homes. Its primary function is to help keep basements dry and prevent flooding by pumping out water that collects due to various reasons such as heavy rains, melting snow, or groundwater seepage. This prevents excess moisture that can lead to mold growth, structural issues, and damage to personal belongings.

The other options are functions related to different systems. For instance, circulating air in the attic helps regulate temperatures and moisture levels, while filtering water is associated with plumbing systems that ensure clean water delivery. Heating water in tanks pertains to water heaters, which serve a completely different purpose. Understanding these distinctions illustrates why the function of a sump pump is uniquely focused on water removal in basements.