u/Fine_Entertainer_935

Due to the condition of our tap water, the family has switched to Primo for drinking water. I was curious and tested the water dispensed at 1 Des Moines, 1 Ankeny, and 1 Ames walmart locations, all were reading above 150ppm tds (total dissolved solids). PRIMO advertises a reverse osmosis process, which should leave the ppm around 10-20. Even 3 days after a recent 'service' the water is still reading well above what real R/O water should be. Cedar Rapids Primo at Walmart is reading 11. What gives? Are they actually using an R/O system in central Iowa? If so, it is not functioning as it should. Has anyone else noticed this issue?