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Project: Harvest Rainwater with Sand Filters

Here’s a great tip from Stephen and Rebekah Hren from their book The Carbon-Free Home: 36 Remodeling Projects to Help Kick the Fossil-Fuel Habit. Harvested rainwater needs filtration before it is potable. Pollution, particles from the air, debris from the collection system (your gutters) are not things you want to find in your tall glass of ice water. Instead of investing in a garage-sized Brita pitcher, Stephen and Rebekah have another idea: sand.

Curious about more simple and effective energy-saving ideas? You can enter to win a copy of The Carbon-Free Home in our latest giveaway contest in partnership with Mother Earth News! Sign up here for your chance to win this and seven other foundational titles for your sustainable-living library.

From The Carbon-Free Home:

Sand filters (also called biofilters) are a biological way of purifying drinking water. Low turbidity (suspended sediment in the water) is a requirement for sand filters to function effectively. Fortunately, a well-functioning rainwater-catchment system should meet this requirement. Sand filters can purify only small amounts of water at a time, as they are unpressurized and work using gravity, so purifying is limited to drinking water. Essentially a sand filter is a large drum filled with sand. Water enters the top and slowly percolates through. A thin, biologically active layer (called the hypogeal layer) quickly forms on top, feeding on the bits of organic residue and other impurities in the water. By the time the water has made it through the several feet of sand, it is potable and remarkably clean. Eventually, the hypogeal layer becomes too thick and needs to be either scraped off or destroyed by drying and backflushing (the water from the flush being disposed of into a nearby thirsty plant). A new one quickly forms and water filtration can continue.

rainbarrel.jpg

Drawing courtesy of Dennis “Mad Man” Pacheco


New French edition of The Resilient Farm and Homestead available

Great news for French-speaking fans of Ben Falk’s The Resilient Farm and Homestead: An Innovative Permaculture and Whole Systems Design Approach. The French language translation is now available from Imagine Un Colibri, from French booksellers, and on Amazon.fr. Falk’s book is a technical manual that details the strategies he and his team have developed for […] Read More

Prepare! Keep a Grab-n-Go Survival Kit Handy

Are you prepared in the event of a sudden emergency? Blizzard, earthquake, insurrection after the inauguration? We know a lot of people are wondering what’s coming next in the US, as well as the world, given terrorism, politics, and global warming, among other threats. In this excerpt from When Technology Fails, a popular book on […] Read More

A Bloggin’ We Shall Go: Your Favorite Blog Posts from 2016

Ah, 2016 – where did the time fly? It seems like only earlier this year we were excited about designing swales and getting to know more about no-till farming, and we ended up focusing on the heart, ketogenic diets and seeking a bio-abundant future. While the top 7 blog posts of the year don’t exactly […] Read More

Yes, America We Can Make It … Really

Uncertainty got you down? The political world may seem like it’s crumbling around us, but this we know: We can make it, America. Literally, we can make things. Houses. Gardens. Food. Below we’ve selected some of our classic how-to and DIY books (and some new favorites) to help you sustain your self, family, and community. […] Read More

Chelsea Green on Instagram: Our Most Popular Photos of 2016

What a year for Chelsea Green on Instagram! We began the year with 500 followers and are now fast approaching 4,000 photo-loving brewers, gardeners, cheesemakers, permaculturists, foodies, seed-savers, homesteaders, foragers, and more. Our most popular posts of 2016 say a lot about what makes you happy: mushrooms, innovative garden designs and techniques, tiny cabins, and […] Read More
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