Basement Waterproofing - TripleSAFE™ 3 Sump Pump System
The black battery is tied to the 3rd sump pump in the TripleSAFE™. There are 2 primary sump pumps and a battery back up too. The sump pump lid helps keep water evaporating up into the basement that include seals around the white 1 1/2 inch lines too.