What distinguishes conventional septic systems from alternative systems?

Conventional septic systems are characterized mainly by their reliance on gravity for drainage. This system typically consists of a septic tank and a drain field, where gravity plays a crucial role in the movement of wastewater from the tank to the soil for treatment. The use of gravity allows these systems to function effectively in many residential settings, as it minimizes the need for additional mechanical components.

In contrast, alternative septic systems may incorporate various technologies and designs that can include pumps or different treatment methods to accommodate specific site conditions, such as poor soil percolation or limited space. While some alternative systems indeed require more maintenance and can sometimes be more expensive to install, their primary distinction lies in the absence of gravity-fed drainage as the main mechanism of wastewater movement, making the reliance on gravity a defining feature of conventional systems.