Which of the following statements is true regarding effluent flow?

Effluent flow primarily follows the principles of gravity, making it essential for the functioning of septic systems. When effluent is released from a septic tank, it naturally moves downward and laterally through the soil due to gravitational pull. This aspect is fundamental in designing septic systems, as it influences the slope of the pipework and the placement of effluent distribution fields.

Understanding that effluent flow is governed by gravity helps installers ensure that the system is appropriately installed to maximize efficiency and prevent issues like backups or poor drainage, which could arise if the flow were impeded. While effluent can be subjected to pressure from pumps in certain systems, the driving force in most gravity-fed designs remains gravitational force, emphasizing the significance of terrain and elevation in the installation process.