The certified installer must lay out a septic system prior to evacuation to ensure what?

The importance of laying out a septic system prior to excavation primarily hinges on ensuring adequate fall between components, which is essential for the proper functioning of the system. Adequate fall refers to the necessary slope of pipes that allows gravity to direct wastewater from one component to another, ensuring efficient flow through the system. If the slope is insufficient, it can lead to backflow, clogs, or ineffective treatment of the wastewater.

Establishing the right layout promotes not only the performance of the system but also its longevity and the health of the surrounding environment. This step helps prevent potential problems related to wastewater management, which could lead to serious environmental contamination or system failures. Proper planning smartly takes into account the necessary elevations and orientations of various components to facilitate effective drainage and functionality throughout the septic system.