Composting toilets are a great thing. They take what has become a problem in modern systems—human excrement—and make it into something useful: rich compost. Despite simple and effective ways of making composting toilets, humanure does still bring about some controversy with those who are worried about pathogens. Confident composters won’t hesitate to put a well-rotted humanure compost in vegetable gardens, whereas less trusting composters opt for applying it to fruit trees. The important thing about either type of composter, however, is that we start making the most of cycling the waste rather than contaminating our water sources.
With all of that said, urine is a completely different excretion, one that really doesn’t need to set off the same alarm bells. Most basic composting toilets are anti-urine, concerned about the high moisture levels, though some argue this needn’t be the case, that the moisture is actually good for the thunderbox. Nevertheless, the idea remains that urine is something else we should be thinking about. Unlike solid waste, urine applied to gardens doesn’t come with the risk of pathogens; rather, it is just, some would say, pure gold. In fact, it can be used in many different ways for boosting production.
MAKE WEE FOR THE GARDEN?
Urine is very high in nitrogen, so much so that it should be diluted a minimum ratio of 1:10 with water before being used on plants. The wee of one person is said to be rich enough to fertilize a tenth of an acre of vegetable garden for the year. Once diluted the micturition mixture, or tinkle tincture if you like, should be applied within twenty-four hours of the urine being expelled. Older urine can become a bacterial issue, and a smelly one at that.
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