Tag Archives | bio sand water filter

Low-Cost Bacterial Water Tests

Simple, Accessible, Affordable Tests to Assess Microbial Water Quality and Safety in the Developing and Developed World “My hope is that these tests would be transformational. Just like cell phones transformed access to telecommunications for people in developing countries, these could transform access to reliable information about drinking water quality” —Mark Sobsey, PhD, Environmental Health […]

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Heat your house with car tyres and earth

A dirt cheap and 100 percent ecological house that has all the comforts of an ordinary home, without being connected to the electricity grid, waterworks, sewer system or the natural gas network. It does exist, but in most countries, building one is not allowed. An Earthship is a completely self-sufficient house that has a natural […]

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How a BioSand Water Filter Works

Test your water quality frequently, even water from ‘safe’ sources may be contaminated. The BioSand Water Filter is an adaptation of slow-sand filtration that is designed for use by families at the household level. This award-winning water filtration technology was developed by Dr. David Manz, a former University of Calgary professor. The filters are a […]

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