Ever wondered how an astronaut goes to the toilet in space? Well now you know... 💩🚽 NASA - National Aeronautics and Space Administration | UNILAD

This diagram illustrates a sustainable water management system designed by Mark Laurence. It demonstrates a closed-loop or "cascading" method for treating and reusing water on a residential or commercial site, integrating both greywater and rainwater. The system uses biological filtration and gravity to move water through different stages of purification before it reaches an ornamental pond. 1. WATER SOURCES The system draws from two primary sources: • Rainwater Harvesting: At the top, an Extens