Main Sewer Clog vs Drain Clog: Know the Difference

main sewer clog vs drain clog

A drain clog affects one fixture or one branch pipe, while a main sewer clog blocks the shared line carrying wastewater from several fixtures toward a municipal sewer or septic tank. A single slow sink usually indicates a local obstruction; simultaneous backups, toilet-to-tub bubbling, or sewage at a floor drain indicate a main-line problem requiring […]