The Homestead Survival shared this post in full because Homegrown Evolutiongenerously let us.
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http://www.instructables.com/id/Build-a-3-drum-rain-collection-system-better/?&sort=ACTIVE&limit=40
Please check your local laws on Rainwater Collection.
Learn how to protect your electronics from electro magnetic impulse. The Survivalist Blog walks you through it.
http://www.thesurvivalistblog.net/build-your-own-faraday-cage-heres-how/