Water is the most important nutrient you must have. You cannot live for more than three days without water. When there is an emergency, you will die from dehydration faster than everything but hypothermia.
It’s important to have water stored that you can immediately drink. For survival, you’ll need at least one gallon of water per day per person.
It can be hard to store enough water for a long period of time because it takes up a lot of space. But don’t let that deter you. Store as much as you can and then make sure you have a water purification method you can rely on so that you can purify other sources of water.
Also consider that water is used for cooking, cleaning, flushing toilets, brushing teeth, and bathing. It’s a good idea to have a separate water storage for these functions. Storing water in barrels outdoors can work well. Don’t rule out alternate water sources like swimming pools, fountains, or ponds.
To store water outside in barrels, you just need to make sure that you have a barrel that’s food grade and free from BPA. You should also make sure that the barrel is clean inside. If you fill the barrel with tap water, there’s no need to purify the water because it’s already been chlorinated.
However, if you use another water source, you need to make sure that you treat it with chlorine. You should also make sure that if you need to drink water from a barrel, you heat it to at least 160° F for at least 30 minutes or 185°F for 3 minutes.