Bone Char: A Very Effective Filter

Bone char — the name is perhaps…uninspiring, but it’s one the most underrated water filtering substance I’ve encountered.

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Ovopur: The Art Of The Water Filter

Ovopur Caviar Water Filter

I’ve been testing an Ovopur water filter from Aquaovo, a company based in Montreal. This filter is certainly the most attractive I’ve come across. My eye is often drawn to its porcelain ovoid shape sitting in my ktichen. I’ve come to think of it as a piece of art that also happens to filter water.

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The Best Water Filters

There are a lot of misleading claims about water filters. Many filters are marketed with general statements like “improves taste and odor”. But filter manufacturers don’t mention the specific amount of pesticides or chloramines removed, for example.

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How To Filter Your Drinking Water Very Efficiently

I’ve spent quite a bit of time researching how to filter drinking water effectively. Originally, I was interested in filtering the rainwater that falls on my roof. But I had to put that project on the back burner for now. During my research I noticed that there is little unbiased information available on water filters and filtration techniques.

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Most Efficient Water Cleaner: Terra Cotta Gravity Water Filter and Cooler

Here is another efficient ceramic water filter. This gravity filter has a hand-made terracotta base, which cools the water using natural convention. We consider it metaefficient because: its has excellent filtration, and a very long filter life (years). Also, the terracotta doesn’t leach contaminants into the water, and it keeps the water cool without needing external energy. It’s available from …

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Slow Sand Filters

Slow sand filters are perhaps the most efficient means of producing clean drinking water. Slow sand filters rely on biological processes for their action rather than physical filtration or disinfection. They require no electricity, no chemicals and no filter changes. How is this possible? The secret is that slow sand filters work through the formation of a gelatinous layer called …

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Producing Drinking Water from Rain Water

It is possible to produce pure drinking water from rain water using a combination of devices costing around $300 total. Here’s how to do it: Install a roof washer and a rain barrel ($200). A roof washes diverts the first ten gallons or so of rain water away from your barrel — it contains such things as dust and bird …