Sump pumps are your first line of defense to keep water out of your cellar. Additionally they shield your bases and the structural integrity of your house. http://www.cshincorporated.com/pumps/hydromatic-pumps/automatic-sump-pump-hydromatic-pumps
The Zoeller M53 sump pump is great for keeping most homes from flooding. The sump pump sets in a basin installed in the floor of the basement and pumps the water up to a level where it is discharged away. Dean Bennett Supply at www.deanbennett.com is your source for all the Zoeller sump and sewage waste pumps you need.
Water Powered Backup Sump Pump - The operation is fully automatic – it works whether you are home or away. The backup pump has its own float switch, which activates the pump when water level in the sump pit rises too high – above the level normally allowed by the primary sump pump. This simultaneously activates an audible high water alarm to let you know that there is something wrong with the primary pump or the power supply. http://www.radonseal.com/pumps/water-powered-pumps.htm