What is the minimum floor drain trap size requirement in a coin-operated laundry facility?

The minimum floor drain trap size requirement in a coin-operated laundry facility is 3 inches. This is important because coin-operated laundry facilities generate significant amounts of water simultaneously from multiple washing machines. A floor drain trap of 3 inches ensures adequate drainage capacity to handle the high volumes of wastewater produced, preventing the risk of backflow or flooding, which could disrupt operations and pose safety hazards.

Additionally, the 3-inch trap size is consistent with plumbing codes and standards that are specifically designed for commercial laundry applications. This size is capable of accommodating the required flow rates and is commonly used for floor drains in similar environments where substantial water discharge occurs. Ensuring that the trap size meets or exceeds this minimum requirement is crucial for maintaining functionality and compliance with local plumbing regulations.