A sump pump cover seal is used to seal the cover of a sump pump basin. The sump pump is a device that is installed in the basement or crawlspace of a home to help prevent flooding by pumping out excess water that collects in the sump basin. The cover of the sump pump basin is designed to keep debris and other objects from falling into the basin and interfering with the operation of the pump. The sump pump cover seal is typically a gasket or sealant that is placed around the edge of the cover to create an airtight seal. This seal helps to prevent water, moisture, and radon gas from entering the basement or crawlspace through the gaps around the cover.