We have acids listed in the water calculator with an ability to change the percentage of the strength- for example, 88% lactic or phosphoric acid vs 10% and so on. Some requests have come in to do the same with the brewing salts, specifically those like calcium chloride. Would this be a good addition for you? Would you like to see this? Or would it be more confusing and in the way? Please vote and let us know if this is something you'd like to see, and feel free to comment here on why you chose the one you did. Thank you!