What is the minimum depth requirement for a floor sink?

The correct minimum depth requirement for a floor sink is 4 inches. This specification is designed to ensure proper drainage and prevent overflow while accommodating the necessary plumbing connections.

A floor sink must be deep enough to catch wastewater effectively from various sources, such as kitchen or restroom facilities, and maintain an appropriate water seal. This depth helps to facilitate adequate drainage and reduces the risk of backflow, which can lead to sanitation issues.

The regulations dictate this minimum depth to ensure that the sink functions efficiently while meeting health and safety standards. Choosing any depth less than this would compromise the sink's ability to manage wastewater effectively.