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Basic Knowledge Of Iron Sand

6 different homemade water filter tutorials.2 bio-sand filters, 2 filters made from trash, another from a tree branch, and a cheap diy berkey water filter.The filter was found to have about 64 removal of iron and 5 removal of magnesium.Craig caudill is an outdoors enthusiast who regularly shares his knowledge at www.Dansdepot.Com.

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