Funny, there was a report on Swiss TV[1] just yesterday where they were talking about how concentrating water cleaning systems is more effective. The went from

Funny, there was a report on Swiss TV[1] just yesterday where they were talking about how concentrating water cleaning systems is more effective. The went from 11 to 2 large water cleaning facilities in the Kanton of Uri as it is a lot easier to keep those using the latest standard than to maintain 11 separate facilities. They now pump the dirty water at hight pressure to the 2 facilities because of the large altitude drop the the pressure needs to be reduced so electricity is also generated from the waste water. The pipeline last around 70 years while a cleaning facility needs an overhaul every 25 years. [1] https://www.srf.ch/play/tv/sendung/schweiz-aktuell?id=cb28dd84-f0c8-4024-8f20-1a29f5a4ceb7 https://www.srf.ch/play/tv/sendung/schweiz-aktuell?id=cb28dd...