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Category: Water
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zip.pngHow_To_Construct_A_Cheap_Wind_Machine_For_Pumping_Water.pdf HOT
zip.pngHow_To_Make_A_Solar_Still__Plastic_Covered_.pdf HOT
zip.png Purification_Of_Water_On_A_Small_Scale.pdf HOT
zip.pngSimple-Methods-for-the-Treatment-of-Drinking-Water.pdf HOT
zip.pngSimple_Solar_Still_For_The_Production_Of_Distilled_Water.pdf HOT
zip.pngSolar_Photovotaics_For_Irrigation_Water_Pumping.pdf HOT
zip.pngSurvival-Water-Purification.pdf HOT
zip.pngWater_-_Build_a_Hand_Pump.pdf HOT
zip.png Water_-_Emergency_Disinfection_of_Drinking_Water.pdf HOT
zip.pngWater_-_Priming_the_Berkey_Filter.pdf HOT
zip.pngWater_-_Rainwater_Harvesting.pdf HOT
zip.pngWater_-_Slow_Sand_Filters.pdf HOT
zip.pngWater_-_Water_Treatment.pdf HOT
zip.pngWater_Purification.pdf HOT