"david" wrote in message
ink.net...
Bottom line. If I stop adding buffer and only add limewater, will
my alkalinity keep dropping?


Only if the amount of Kalk you are adding is not enough to keep up with your
tanks demand. Kalk adds calcium and alk in a balanced ratio. IOW, if you
manage to raise your calcium with it, your alk will have gone up as well.
And, if you are maintaining calcium levels with it, it's likely that your
alk will not go down.

Kev