Which type of building drain is designed to convey storm water and other drainage but no sewage?

A building drain designed specifically to convey storm water and other drainage, without any sewage, is known as a Storm Building Drain. This type of drain is specifically configured to manage rainwater runoff and other non-potable water sources, ensuring that these waters are effectively diverted and handled separately from sewage systems.

By using a dedicated Storm Building Drain, the plumbing system can enhance its efficiency in managing rainwater and prevent the introduction of contaminants that could arise if stormwater were mixed with sanitary sewer systems. This separation is not only crucial for effective drainage management but also for maintaining the overall integrity and safety of the wastewater treatment process. Using a separate drainage system for stormwater reduces the risk of overloading sewage treatment facilities during heavy rainfall events, therefore protecting public health and the environment.