The smell was very different. It was like a smell from some cream or mayonnaise, which had gone old, but didn't stink due to preservatives. Not a pleasant smell and not appalling either. The conclusion from this experiment is that very different types of microorganisms are present in the the samples. In the non-revitalized samples anaerobic organisms are at play thriving in a rotting environment and in the revitalized samples aerobic organisms are at play in an environment with plenty of oxygen.
Anaerobic microorganisms live without oxygen whereas aerobic microorganisms are oxygen dependent.
Oxygen was only available in the revitalized samples. When you have a Water Revitalizer you can do this test yourself and please share the results with us. If you have hard Water giving you problems with mineral build up you can test your Water Revitalizer in this way. You take a container e.g. a glass jar, coffee machine or kettle with mineral build-up on the inside. Fill it up with revitalized Water and let it stand somewhere at room temperature in the shade for a month or two without moving it.