Drain Express, a leading Toronto plumbing service, explains the key differences between drain lines and sewer lines at https://drainexpress.ca/drain-line-vs-sewer-line-key-differences-you-should-know/. Their guide clarifies that drain lines carry wastewater from individual fixtures like sinks and toilets, while sewer lines transport all household wastewater to municipal systems or septic tanks. Industry data suggests that understanding these distinctions can reduce plumbing repair costs by up to 20% through timely issue identification. Drain Express uses advanced tools like CCTV inspections and hydro-jetting to address clogs in both systems. Drain line issues typically affect one fixture, while sewer line problems impact the entire home. Their licensed team offers 24/7 service across Toronto and the GTA, ensuring quick, reliable fixes. Regular maintenance, recommended every 18-24 months, prevents major blockages. Drain Express’s expertise helps homeowners maintain efficient plumbing systems.