I was reading a thread and articles over the weekend about using kalkwasser and thought of a question. Kalkwasser sounds really simple to fix and use and I am definately going to set up a drip either sometime this week or weekend. Maybe it'll help simplify and correct some of the water chemistry that we've battled for a while. But I was wondering with the ph adjusted using kalkwasser, how do you get the ph to match the tank when you're mixing water for a water change, without over doing it?