The answer to 'difference between sump pump and sewage pump' is that a sump pump is used to remove excess groundwater from a home's basement or crawl space, while a sewage pump is used to lift sewage or wastewater from a lower level to a higher level where it can flow into the main sewer line. Sump pumps are typically installed in a sump pit and turn on automatically when water reaches a certain level, while sewage pumps are used in homes without a gravity-fed sewer system.
Sump pumps are generally less expensive to install and maintain than sewage pumps, but sewage pumps are required in homes with a basement bathroom or other fixtures below the main sewer line. Homeowners should choose the appropriate pump based on their specific plumbing needs and the layout of their home.