Which type of fire line installation is considered obsolete?

The dry standpipe system is considered obsolete because it is less effective than other types of fire line installations, particularly in enhancing firefighting capabilities. A dry standpipe relies on firefighters to supply water through hoses, which may lead to delays in response time, especially in situations where immediate water access is critical.

Modern firefighting strategies and building codes emphasize the use of wet standpipes, which are always filled with water and ready for immediate use, providing a much quicker response during emergencies. Combined standpipes, which integrate both wet and dry systems, also enhance flexibility and efficiency in firefighting operations. Fire hydrants serve a different purpose as they connect to municipal water supplies, allowing firefighters quick access to water for fighting fires, and are widely used in urban firefighting strategies.