There are a variety of spring water sources in our neck of the woods.  When I visit them - for their aesthetic charms - I regularly see Moroccans filling countless large plastic receptacles - far more than could be for their own immediate personal use - which I'm guessing 'feed' their community (for free).  As the saying goes 'When in Rome do what the Moroccans do'.  The locals swear by the health-giving properties of this spring water - particularly in regard to your kidneys.  When in Tortosa...