During a brief shopping run, I ran into a PE master (he claimed he was one) who was also staring at the cartons of bottled water on special in a popular supermarket.

He said one brand had a pH of 7.8 and the other brand had a pH of 8.

He said the pH 8 water was better (a wee bit dearer too) than the pH 7.8. He said he knew it because he was a PE teacher.

Can someone, preferably a dietician or another PE master provide clarification on this please? Ben Ryan’s out in Vegas, otherwise I would have called Culden to ask Ben.