We in the 'civilised world' take water for granted. We turn-on the tap, and out comes clean drinkable water in as much quantity as we require. We water our gardens, fill our pools, and have labour-saving machines that uses the stuff as if there's no tomorrow.
This was all fine when there were just four of us in our tiny hamlet; now there are many many more, and in summer anywhere up to about 50... all of whom use copious amounts of water.
Our water supply comes from a natural spring about 5 kms away. It is purified, pumped-up into a nearby water tower, then pressure fed to the houses.
We've been advised that the spring where the water originates is far less generous than in previous times, and with all the excessive use it doesn't seem too far-fetched to imagine our supply slowly coming to an end. It does look as though at some time in the future, houses will need to make their own provision in order to guarantee a supply.
Digging a well is not difficult; one digs down whilst lining the sides with either bricks or giant concrete tubes. One goes as far as when one hits water.
My first farmhouse here had it's own citerne as did most other houses. It was a huge concrete lined hole, about 10 feet in diameter, and 30 feet deep, that was filled with water from the roof. There was a lovely old pump at one end of the terrace which brought the water up to just outside the kitchen door. A bucket did the rest. The citerne was always full.
I can see the day when such citernes will again be essential. With large fibreglass containers now easily available, installing such underground tanks would not be complicated. Having them filled with rainfall is another question. Global warming won't help.
Maybe in the future we'll all have to learn to be frugal with our water again, and treat it as a valuable commodity.
I do hope I'm wrong.