How to Prevent Sewer Backup: A Homeowner’s Plan

how to prevent sewer backup

To prevent sewer backup, reduce blockage sources, keep rainwater out of the sanitary line, inspect the private sewer lateral, and install correctly sized backflow protection where needed. A backwater valve usually provides the strongest automatic defense against municipal sewer surcharge, while sump pumps protect against groundwater, not sewage. Key Facts A backwater valve blocks reverse […]