The answer to 'which is better sump pump or sewage pump' is that sump pumps and sewage pumps serve different purposes and are better suited for different situations. Sump pumps are designed to remove excess groundwater that collects in a home's basement or crawl space, while sewage pumps are used to pump wastewater from a home's plumbing system to the main sewer line.
Sump pumps are typically less expensive to install and maintain than sewage pumps, and are a good choice for homes with a high water table or frequent flooding. Sewage pumps, on the other hand, are necessary for homes with a basement bathroom or other fixtures below the main sewer line, and can handle more solid waste materials. The best choice will depend on the specific needs and layout of your home.