by Rhona Mahony. I’ve written here (“Water is Precious, Poop is Priceless”) about the advantages of dry toilets. They conserve potable water. They produce organic fertilizer. Those results are good, because many people in the world don’t have clean water to drink. Instead, they get sick. What’s more, many poor countries spend scarce foreign exchange to import synthentic fertilizer. Experiments with different kinds of dry toilets and collection systems can take place anywhere, at many scales. It is possible that advocates of dry toilets might not be merely loony, tree-kissing ascetics trying to take the fun out of our bathrooms. Finding a smart way to dispose of, and even make use of, human manure for the 21st Century could have big pay-offs.
I want to test how practical it really is to lug buckets of sawdust and human manure around the house. My test is easy in one way: I am the only person in my family of five using the dry toilet. That leaves me with one-fifth the lugging. It is harder in one way, though, from the experience of someone whose town is collecting the toilet contents. I am doing my own composting. Continue reading →