A sump pump is a device used to remove excess accumulated water from a home’s sump basin. Usually installed in a specially constructed pit or sump basin below the basement floor level, a sump pump is activated, either automatically or manually, when water enters the basin. Spring can indeed be a time when basements experience flooding and sump basins have water in them. While some water is normal to appear in a sump basin, excessive water or flooding is a problem that may be caused by a poor drainage