Do you know how much drinking water you should stockpile?

The other day, we talked about stockpiling, and today I'll give you a little quiz. ・Question Based on the amount of drinking water an adult needs per day, approximately how many liters of drinking water should be stockpiled as a minimum? ① Approx. 6 liters x number of people ② Approx. 7 liters x number of people ③ Approx. 9 liters x number of people The answer is... ③ Approx. 9 liters x number of people It is said that an adult needs about 3 liters of drinking water per day. For the first 72 hours after a disaster, life-saving is the top priority, and it is estimated that it will take 3 days for public support to arrive. Therefore, a minimum of 3 days' worth of drinking water needs to be stockpiled, calculated as 3 liters per person x 3 days = 9 liters of drinking water per person, which is the minimum amount to stockpile. Also, in the event of a large-scale disaster, recovery of lifelines and support are often significantly delayed, so it is recommended to stockpile at least one week's worth of drinking water if possible. In addition, it is said that 10-20 liters of water per person per day are needed for daily living, so not discarding leftover bathwater immediately and saving it can be a preparation for emergencies. (A typical bathtub holds 180-200 liters of water.)