One has to be careful where you buy garafons of water and the brand name. Some dirty old PU delivering to trailer parks is not my idea of quality. Both Coke and Pepsi have their own brands of water. These come out of their bottling plants. You cannot make soft drinks with bad water. Bottling plants have been purifying their water since soft drinks began. If you buy these brands it will never be tap water! Briansue: Bottled water in a returnable garafon is VERY environmentally friendly. I and 2 litres in disposable bottles are not. Oxxo stores carry the "good" water but it is more than 10 pesos.
Moisheh