This Staten Island basement had water coming through a crack in the foundation wall. Quality 1st Basement Systems fixed it with FelxiSpan - a three part solution to fix cracks in basement walls. FelxiSpan ends leaks with a flexible sealant, pourous foam, and a watertight membrane. Water will never get through FlexiSpan, and is rerouted down to the basement drainage system. Now this foundation crack is sealed and safe, and the basement will stay dry.