The answer to 'best sewer line' is that the best sewer line for your home depends on several factors, including the age and material of your existing sewer line, the soil conditions in your area, and the layout of your property. Generally, the most durable and long-lasting sewer line materials are PVC (polyvinyl chloride) and cast iron, which can last for 50-100 years with proper installation and maintenance.
When choosing a sewer line, it's important to consider the pipe's diameter, depth, and slope to ensure proper drainage and prevent clogs or backups. Additionally, you'll want to ensure the sewer line is properly sealed and connected to your home's plumbing system to prevent leaks and water damage.