lol, Richard, sorry bout the confusion, Im trying my best to get this concept accross as simple as possible. Some details can be a bit trying untill, "click" is all makes sense. lol. As far as the Ph goes, a stable Ph of 7.8 is much more desirable than a dramatic swing from 7.8 to like 8.4. Kalk may or may not heep it as stable but will definately help raise it. Side note: Kakwasser will not dramatcly raise your Ca-Alk levels, you need to bring them to acceptable levels with a good 2 part system like B-Ionic, once there, the kalk will help >maintain< the levels. One more thing, be sure to use the highest quality kalk you can find, (ESV Ph-12.4)) Ive tried them all, ESV is the only kalk Ive used that doesnt leave a nasty brown residue in the reactor. This may or may not be an issue depending on how religious you are about letting the solution settle.