What hasn't been said here yet is that Kalk
is used because you are adding BOTH Ca
at the same time. So it isn't just about your Ca
level....it's about maintaining both Ca
You should monitor both Ca
to ensure that you don't over dose the Kalk
is Calcium Hydroxide...the Calcium part is obvious..the Hydroxide (OH) part combines with atmospheric CO2
to produce carbonate alkalinity.
I was unsuccessful trying to subsitute Kalk
for evaporated water. That just wasn't precise enough and my Ca
usage wasn't that high. It is really easy to over-dose in that situation.
If you going to use it to replace your evaporated water, I suggest that you start with a mix that contains almost NO Kalk
and very slowly increase the concentration of the mix while measuring the Ca
. Eventually, you'll find the concentration that holds your values steady.