400 gallon project

[untamed]

Originally Posted by mark

Realize that you are running the Kalk reactor for it's effects on pH in addition to Ca, but since there is a Ca component, have you measured the Ca with the different stirring strategies (or is there a direct collation between ph and Ca).

The clear liquid at the top of the reactor is Calcium Hydroxide. An over-simplified way of thinking about this is that the Calcium represents the Calcium part, and the Hydroxide represents the Alkalinity part. So...yes, a measurement of the liquid's pH is representative of Ca and Alkalinity potential of the liquid, in this case.