I work for a company in Canada (Quebec) that manufactures and applies corrosion inhibitors in order to control the color resulting from iron corrosion in drinking-water distribution networks. I know that in Europe operators rely on calco-carbonic equilibrium, since, I believe, there are regulations prohibiting the distribution of aggressive water. However, in order to meet lead standards, it seems to me that softening treatments are authorized. I would like to know if any of you have experience in the field of municipal drinking water regarding the application and use of corrosion inhibitors.
This issue has already been addressed: https://www.fluksaqua.com/en/qa/2547/aggressive-drinking-water-and-treatment-with-film-forming-protection-in-europe
Sorry, my original question concerned the technical aspects of the two technologies (equilibrium vs. corrosion inhibitor). This time, I would like to have feedback on corrosion inhibitors specifically to treat water containing lead.