The answer to 'sump pump vs sewage pump' is that sump pumps and sewage pumps are both types of water pumps used in homes, but they serve different purposes. Sump pumps are used to remove groundwater that collects in a sump pit, typically in a basement or crawl space, to prevent flooding. Sewage pumps, on the other hand, are used to pump wastewater from a home's plumbing system to the main sewer line or septic tank.
Sump pumps are generally less expensive and simpler to install than sewage pumps, as they only need to handle clear water. Sewage pumps must be able to handle solid waste and are more complex and costly. Sump pumps are typically used in homes with a high water table or that are prone to flooding, while sewage pumps are necessary in homes where the main sewer line is located above the home's plumbing fixtures.