What additives are there in water?

Common additives in water include chlorine, used for disinfection to eliminate harmful bacteria and viruses; fluorine, which helps prevent tooth decay; and phosphates, often added to control corrosion in pipes. In some cases, minerals like calcium and magnesium may also be included to enhance taste or improve water quality. Additionally, some municipalities may add food-grade phosphoric acid or sodium hydroxide to adjust pH levels for better water quality.