| ▲ | whatisthiseven 16 hours ago | |
Yes, there have been standards for years already. It was proven in s US city some time ago when it faced a bad drought. Las Vegas is a 100% closed loop system. All grey water is recycled back into Lake Mead fur reuse. Modern sewage treatment is a modern miracle. | ||
| ▲ | _heimdall 14 hours ago | parent [-] | |
It is a modern miracle, though the miracle is in part that we can now drink poop water. | ||