I have recently started to dose kalkwasser. My depletion rate is pretty low. My tank only uses approximately .3 dkh a day. I have started to ween off of 2 part onto the kalk. I am up to 37ml/hr of kalk for a total of 890 ml/24hr. My standard deviation in ph prior to adding kalk seems to be 7.9 to 8.1. I had one test return a 8.4 but that appears to be an inaccuracy. I am approximately 24hrs into dosing kalk and there is no increase in ph. Is this common, am I doing something wrong, is the amount I require not enough to boost the ph?