I've only recently started treating my water, and from reading threads on here and elsewhere, I'm reasonably happy with the theory of it, where I'm having a little more difficulty is in the practice. Specifically measuring out the acid doses. I bought a jeweler's scale to measure out the salts accurately, but I'm not doing so well with the acids. The only food grade acids I can find are lactic and phosphoric, both in highly concentrated form (88% and 85/80% respectively). Using Bru'n Water I'm often being told to add say 2.1ml to my mash water, and 0.9ml to the sparge. I've got a 5ml syringe that I'm trying to use, but it's only marked with gradations to 0.2ml, which leaves me estimating those odd numbered doses.
How do you guys accurately measure acids out? (does it matter that much?) Should I try diluting the solution first, and then measuring that?