Water is one of the most critical human needs, but it can easily become contaminated. Once contaminated, it’s critical that you purify the water well in advance of consuming it.
The average person can only last three days without access to fresh water, and this is the main reason that preppers and survivalists are urged to store as much of this life-sustaining liquid as possible.
However, even if you take the proper precautions, you might still find yourself needing to purify dirty water in order to survive.
The good news is that pool shock can help you accomplish this.