The answer to 'which is better sewer line or' is that sewer lines are generally better than septic systems for most homeowners. Sewer lines connect your home's plumbing directly to the municipal sewage system, providing a reliable and efficient way to dispose of wastewater. They require less maintenance than septic systems, don't take up yard space, and are better for the environment since they don't rely on a leach field.
However, septic systems can be a good option in rural areas without access to a municipal sewer system. They allow homeowners to manage their own wastewater on-site, though they do require more regular maintenance and inspections to function properly.