In plumbing, what is a "gravity drain" designed to do?

A gravity drain is specifically designed to allow water to flow downhill, relying solely on the natural force of gravity. This type of drainage system is crucial in plumbing, as it facilitates the efficient removal of wastewater without needing mechanical assistance like pumps. By utilizing gravity, these drains can effectively transport excess water or effluent to a designated drainage area or sewer system that is situated at a lower elevation.

The design and placement of gravity drains are essential in ensuring that they are pitched appropriately to enable continuous flow and prevent blockages. This method of drainage is often utilized in various plumbing applications, including residential, commercial, and industrial settings, where the natural gradient can be leveraged for effective drainage solutions.