In recent years, chloramines—compounds formed when ammonia is combined with chlorine—have gained popularity as a secondary disinfectant. Chloramines are less reactive than chlorine and produce fewer harmful by-products, making them an attractive option for long-term water distribution systems. They provide sustained disinfection, reducing the risk of pathogen regrowth as water travels through pipes. However, while chloramines have advantages, they may not be as effective against certain pathogens, necessitating the need for thorough monitoring and sometimes additional treatment methods.