How Everything Works on Instagram: "The reason firefighters sometimes open hydrants and let water gush out isn’t waste—it’s a process called hydrant flushing. Over time, minerals, rust, and sediment build up inside water pipes. If left unchecked, this can reduce water pressure and even cause discoloured water to flow through the system. By flushing hydrants, firefighters release high-pressure water through the pipes, clearing out debris and ensuring the system stays clean, efficient, and ready t

| What is Piping