Just received an email from air water and ice, the rodi manufacturer that I use, asking if I am filtering for Chloramines. I checked my water district 2015 report and it states there are 2.03(average) mg/ml in my water. It is reported as disinfectant residuals (chloramines). I do not know if that amount is significant, or detrimental, and whether I should be ordering a catalytic carbon upgrade filter for my system as they suggest. Opinions?