Let’s be frank, not many people like to talk about poo. However, we all create it, and most of us do it in environments where toilets are not available, or not connected to a sewage system. Big challenge is how to clean the faecal sludge, gathered in those toilets. Many VIAWater projects work on this issue, and take it a step further: how to make the best use of the faecal sludge, and change it from a stinky, dirty, unhealthy pile to a useful source for cooking, composting and energy?