Water seeping through basement walls and floors is a common sight.
This is because water seeks its own level. When the soil surrounding a basement foundation wall is saturated or flooded with water, the pressure exerted against the soil side of the basement wall is increased. The pressure provides the force to encourage leakage through cracks, splices or at the connection of the foundation wall to the footing. The method of basement wall construction, whether a reinforced poured concrete or block construction, has a large effect on how to handle basement water. An unreinforced block basement cannot stand very much pressure and will collapse quite easily.