Knowing how to boil and sanitize water if you don't have a fire-safe container may save your life one day. Learn how in 7 easy steps.<br /><br />#DualSurvival<br />Wednesdays 9/8c on Discovery<br />http://dsc.discovery.com/tv-shows/dual-survival<br /><br />Subscribe to Discovery:<br />http://bit.ly/SubscribeDiscovery<br /><br />Watch full episodes of Dual Survival:<br />http://www.hulu.com/dual-survival<br />http://bit.ly/DualSurvivalFullEps<br /><br />Join us on Facebook:<br />https://www.facebook.com/DualSurvival<br />https://www.facebook.com/Discovery<br /><br />Follow on Twitter:<br />https://twitter.com/Discovery
