What type of drains do laundry, galley sinks, and showers utilize?

Laundry, galley sinks, and showers utilize waste drains because these drains are specifically designed to carry away wastewater from various domestic and commercial fixtures. Waste drains handle the discharge of non-potable water from sources like sinks, washing machines, and showers, directing it safely to the sewage system or a treatment facility. This classification is crucial as it indicates the function and purpose of the drainage system in managing wastewater effectively.

In contrast, soil drains are associated more with groundwater management and may not be directly connected to indoor plumbing fixtures. Storm drains are intended to manage surface runoff like rainwater, which is separate from the wastewater generated by household activities. Overflow drains serve to prevent flooding by allowing excess water to exit, typically found in situations where water levels can become dangerously high, making them different in purpose from waste drains. Overall, the primary role of waste drains in the context of laundry, galley sinks, and showers is to ensure the efficient removal of wastewater, making them the correct choice.