Water Crises, part two

There are many water tables under the ground that are not touched, or even known all over the world. For example the largest one is in the desert in Libya, but the point about using those source of sweet water is expense and governments over there.
$ 400 billion money is working in water industry every year, and it means the third largest industry afterelecticity and oil in the world. Five litters of water use to make a bottled water. In many countries millions of hours spend to provide the water just for a house hole per year. Those wasted time could use to make the available water accessible, just along one year.
Interesting way which is cheap to clean the water from heavy metal is banana's peels. This method is not fine for house hold, but people can do it in the villages that their water is contaminated with pollution. Every day people die of water's problem, but it could stop if the circumstances change to the wisdom part of life.