The answer to 'what causes sump pump' is a sump pump is a device installed in the basement or lowest level of a home to remove excess water that accumulates in the sump pit. The most common causes of sump pump issues are heavy rainfall, a high water table, or a blocked or malfunctioning pump. Sump pumps are essential for preventing basement flooding and water damage in homes with a tendency for groundwater intrusion.
Sump pumps work by detecting rising water levels in the sump pit and automatically activating to pump the water out and away from the home's foundation. Issues like power outages, a failed pump, or a blocked discharge line can all prevent the sump pump from functioning properly, leading to potential flooding.