lotusanne
Guest
Coincidentally there was a fascinating problem on about the history of toilets looking at their invention, adoption, countries that still have raw sewage and no toilets at all ending with looking at research funded by bill gates into a completely revolutionary way to deal with sewage - microwave it, turns it into plasma and the gas produced then fuels the system, hence no waste of fresh water for flushing and no cost to power it. Also looked at compost toliets recycling nutriens, worth a watch if interested