How to purify drinking water in the field(ye wai ru he jing hua yin yong shui )

How to ensure the safety of drinking water is a problem that every traveler should seriously consider. Unclean water often contains some pathogenic substances, such as various pathogens, rotten plant stems and leaves, insects, birds, animal corpses, feces, and some may also contain heavy metal salts or toxic minerals. Therefore, travelers in finding water, it is best not to rush to drink, but to deal with the necessary water purification and disinfection.

(1) Put the water purification tablet into the water storage container, stir and shake it, and let it stand for a few minutes before drinking. Generally, a water purification tablet can disinfect 1 liter of water.

(2) If there is no water purification tablets, medical iodine, bleach, vinegar, etc. can also replace the water purification tablets for disinfection, but the standing time is slightly longer, 20-30 minutes.

(3) Boiling water for 5 minutes is also a good way to disinfect water when there is a fire below 2500 meters above sea level, which is simple and practical.

(4) If there are heavy metal salts or toxic minerals in the water, strong tea should be boiled with water, and the final precipitate should not be drunk.

Chinese PinYin : Ye Wai Ru He Jing Hua Yin Yong Shui