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Dear Editor: In regards to “Constructing a DIY Composting Toilet”: That urine could be a valuable commodity for those that might need to improvise their own black powder one day. I respectfully submit this website link, which explains one way the Old Confederacy manufactured nitre (saltpetre.) A chemist named Jonathan Harrelson in 1863 figured out how to create more potassium nitrate or nitre by extracting it from urine. The men were all away fighting. But women could collect their urine out of bedpans and pour it into a huge truck pulled by a horse around town and they would make potassium …

The post Letter Re: Constructing a DIY Composting Toilet appeared first on SurvivalBlog.com.

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