What is the minimum required cover for a sewer line under a slab?

The minimum required cover for a sewer line under a slab is 6 inches. This requirement is essential for ensuring adequate protection of the sewer line from physical damage and for preventing any potential issues related to settling or shifting of the foundation. A cover of 6 inches not only provides a buffer between the sewer line and the concrete slab but also helps maintain proper functionality, reducing the risk of blockages or system failures.

When sewer lines are installed, they must be positioned at an appropriate depth to accommodate the soil type and potential surface loads. The 6-inch cover requires careful consideration to ensure that the sewer line is not only buried sufficiently but also avoids conflicts with insulation or other utilities that may be present in the slab. This practice helps to promote the longevity and integrity of the plumbing system within the building.