Posted: 20/07/2014 at 09:05
About 15 years ago there was a minor scandal here in Britain when the Coca-Cola company decided to go into the bottled water business. It turned out that they were taking their water from the taps in their factory and carbonising it, the brand rapidly went out of business. This led to scientists checking out bottled waters and tap waters who discovered may bottled waters had been in the bottle so long they were not as fresh as tap water. Most UK tap water is safe from bacterial contamination partly due to use of chlorine and effective filtration. Chemical contamination is more of a concern in some parts [i.e. aluminium in Cornwall a few years ago] nitrates from fertilizers in agricultural areas, but water in plastic bottles gets contaminated by different chemicals from the plastic.