Water water everywhere but where?

Water as one of the elements is held as sacred, purifying rites and rituals, one’s physical self and symbolic of mental and intellectual cleansing.
At one point in our collective history, water was naturally recycled as people tapped into nature for their needs. Well water that was used to drink and cook. There were no fancy flushes and showers. I remember bathing in the rain in my dad’s ancestral home or going to the river. There was no bathroom there. For morning ablutions, there was a makeshift shed which was nothing more than a hole in the ground. And everything was fine. There was never a shortage of water. Everything was in harmony.
Fast forward to our present day and everything is synthesised. And somewhere as a race, we are getting more conscious of the wisdom of our ancestors and going organic and looking at natural remedies. In this context, I can understand the horror of using chlorine when there are other options available. But what is a viable solution. Any innovators out there?