What is the minimum slope required for a gas line installed underground?

The minimum slope required for a gas line installed underground is 1/4 inch per foot. This slope is critical for ensuring proper drainage of any condensation that may occur inside the gas line, which helps to prevent the buildup of liquids that could create hazards or block gas flow. Maintaining this slope allows any water or moisture that accumulates to flow towards the appropriate drainage areas, minimizing the risk of corrosion and other issues that could compromise the integrity of the gas line over time. Adequate drainage is essential in maintaining the efficiency and safety of underground gas distribution systems.