Where should the stub out location be for the house sewer?

The stub-out location for the house sewer should ideally be positioned at the lowest elevation. This design choice is crucial because it ensures gravity can effectively assist in the flow of wastewater away from the home and into the sewer system or septic tank. Placing the stub out at the lowest point facilitates efficient drainage, minimizing the risk of backups or clogs that could occur if the exit point is too high or at an inappropriate elevation. Properly positioning the sewer line at the lowest elevation helps to avoid potential stagnation of sewage and ensures that the system functions correctly and efficiently.

Selecting the highest elevation or mid-level elevation would impede the gravity flow of sewage, making it more challenging for wastewater to exit the home, which could lead to functional issues in the sewage disposal system. Ground level is not appropriate either, as it may elevate the risk of blockages or flooding in areas prone to water accumulation. Therefore, the correct option to ensure an effective and reliable sewage system is to establish the stub-out at the lowest elevation for optimal drainage and performance.