SurvivalBlog presents another edition of The Survivalist’s Odds ‘n Sods – a collection of news bits and pieces that are relevant to the modern survivalist and prepper from “HJL”. Take a look at the article featuring the .22LR in actual combat!
Safe Water
SurvivalBlog reader G.P. sent in the link to this interesting product: Eco poly Glu. It is a small water purification system that uses a flocculant. This causes colloids and other suspended particles in the water to aggregate and settle out. Combined with a small amount of chlorine, you can get workable water from muddy water fairly easily. According to Business Insider, it is made from fermented soybeans.
Concrete
Living next to a volcano isn’t all bad. Reader P.S. sent in this article showing how Ancient Rome’s concrete actually got stronger by interacting with seawater. Contrast this to modern concrete made from Portland cement that weakens with such contact. The strength and longevity apparently has something to do with the volcanic ash that was used to create the concrete though the process is not fully understood yet.