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 used to remove excess groundwater from a home's basement or crawl space, while sewage pumps are used to lift sewage or wastewater from a home's plumbing system to the main sewer line.
Sump pumps are typically less expensive to install and operate, and are a good choice for homes with minor water seepage or flooding issues. Sewage pumps, on the other hand, are more powerful and are required for homes with a bathroom or other plumbing fixtures located below the main sewer line. Sewage pumps are also necessary for homes with a septic system or in areas with high groundwater levels.