knifegill;4319506; said:In theory, you check your city water report and dose according to the bottle. It states a certain quantity of Prime will remove a given amount of Chlorine / chloramine, but I don't know how reliable it all is, really. I did look it up a long time ago and "did the math" guesstimating. Now I just do two drops a gallon and call it good. And it's working.
Ok, since I have well water I never needed to look up what chloramine is, you made me look it up. It is in simple terms ammonia and chlorine, variants used and or found in municipal water treatments are monochloramine (NH2Cl), dichloromine (NHCl2), and trichloramine (NCl3). Note that the first 2 are changing your pH more significantly, however the later 2 are more toxic as to chlorine.
Fishkeepers would be well advised to know that water temperature is key as to the solubility/concentration that is possible of both chlorine and ammonia in water. The colder the water the more that can be held in solution, as temperature increases solubility decreases.
I would not trust water reports as to ppm concentrations as they are likely only target concentrations as to what they wish to discharge and they also have reason to report on the downside of reality. Even if they are honest they are reports after the fact of your water use. I do not wish to alarm anyone but some here might like to be exacting. I myself would greatly appreciate knowing the chemicals they have you put into your city water to remove the chlorine and if it even addresses the ammonia that is in the chloramine they use (I will skip the fluoride for now). Anyone that uses these products should be able to get an MSDS (material safety data sheet) on the product per Federal law.