Not only the CO2, but also the glassware you put the water in for measuring can very significantly alter the pH. Some scientists I know systematically screened different, presumably clean, containers because of this effect before progressing with their experiments.
Not only the CO2, but also the glassware you put the water in for measuring can very significantly alter the pH. Some scientists I know systematically screened different, presumably clean, containers because of this effect before progressing with their experiments.
We had a distiller in the department. We’d roll over a cart fill a carboy.