<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (April 2017) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (April 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> A sump pump is a pump used to remove water that has accumulated in a water - collecting sump basin, commonly found in the basements of homes . The water may enter via the perimeter drains of a basement waterproofing system, funneling into the basin or because of rain or natural ground water, if the basement is below the water table level . </P> <P> Sump pumps are used where basement flooding happens regularly and to solve dampness where the water table is above the foundation of a home . Sump pumps send water away from a house to any place where it is no longer problematic, such as a municipal storm drain or a dry well . </P>

Where does the water come from in a sump pump