Hello everyone! I would like to use Zinc Sulfate on my batches, but I don't have a clue on how it contributes to the total Sulfate ppm (not even on zinc ppm). Since the BF calculator don't have this option, I didn't start using it yet. Anyone knows how to calculate it or have tips for using? Maybe BF's could add this element to the calculator if a lot of people find it helpful. tks, Tiago.