How long does it take to purify a canteen of water using Calcium Hypo chlorite?

Purifying a canteen of water using Calcium Hypochlorite typically requires about 30 minutes. This duration is crucial for ensuring that the chlorine has enough time to effectively kill harmful bacteria, viruses, and other pathogens present in the water. The process involves adding the appropriate amount of Calcium Hypochlorite to the water and allowing it to sit undisturbed for this period to maximize disinfection.

During this time, it is important to ensure that the water is mixed sufficiently to allow the chlorine to disperse throughout the entire volume. After the recommended contact time, the water can be considered safer for consumption. The other timeframes presented—15, 20, and 25 minutes—might not provide enough time for the chemical reaction to occur, potentially leading to inadequate purification and a risk of waterborne illness.