Thanks!

Do you have a garden or one near you where you can collect and filter ground or rain-water?

I do have water for different domestic tasks, but it is not drinkable... so I would not need to collect rainwater, which, with the little rain here, would not be constant, I would only have to figure out how to filter it. I will delve into it.

This could solve partially the problem to pay more for the water.

The price of water is higher but it is still water, that is, it is still affordable, what I did not like was that they raised the price simply because of arbitrariness and not because of any real market dynamics.

Anyway, thanks again for the advice, which I will take into account, and for the interest.