Many years ago man would choose to build their village or commune near to a water supply, river or a stream.
They used the water supply to help with their day to day actions such as bathing, cooking, drinking and cleaning. Towards modern times, rainwater was collected in cisterns and pumped into the house using old style hand pumps.
We have come full cycle again water is now being collected in outside tanks, and electronically pumped into the house to flush the toilet and carry out the laundry tasks.
How things have changed …. Not!