I was thinking of going with the Glacier. The Primo says it is purified and is 99% pure and I found a water report for their water. Maybe, if the Glacier machine isn't kept up, the Primo would be better. I guess I could also build the water as I want it by knowing the water analysis ( if it is right). there is the site for the Primo water Analysis.http://www.primowater.com/PrimoNew/files/92/92ac9e80-5937-4ce2-8a8f-666816d8aed3.pdf
soo I guess not matter what I do I should invest in a TDS tester.
neither can any of the employees apparently