4 ms·

There is company in Czechia which provides optics via sewage. I guess it is cheaper to use existing infrastructure than to place new pipes under roads.

• martyvis 5y ago
  Sounds a bit like this "How TiSP Works" https://archive.google.com/tisp/install.html https://archive.google.com/tisp/install.html
• goodpoint 5y ago
  "cheaper" is an understatement.