A flooded basement can be a headache for many homeowners and individuals, causing thousands of dollars in damage. Luckily, there are several simple tips that can help prevent flooding in a basement. Make sure that a basement has a central drain installed, with the floors sloped towards the central drain. If a basement is below a septic line, it's possible to install a sump pump to push water to a higher elevation. In some areas, it may be possible to vent a basement drain outside of a home. Make sure to check local laws and regulations before installing a drain pipe outside a home.