Without water, life would cease to exist so you can never have too much. Having a good rain catchment system in place not only could save your life in a grid down situation, but it could also help you save some money on your water bill now. In the video below Kainanra’s Suburban Homestead shows you how to setup a 220 gallon rain barrel system. You can easily make this system as big or as little as you like and if money is short you can always add on to the system later. For those of you that are wondering you can find these barrels pretty cheap on craigslist, just search for food grade barrels.