So don't raise my calcium at first? Just lower my alk?
Raise your calcium by doing supplemental manual dosing over a week... again nothing too drastic .... This alone might fix your problem since Alk and Calc compete for space... and will drive each other down.
Test every night, prior to dosing... If you alk is going down fine.. let go down until it gets to the point you want it to go aka 8dkh or sure (decreasing Alk levels mean you are not matching consumption... but with 10dkh that is fine for now)
As for Calcium it should be increasing as you are dosing 2 part and supplementing with manual dosing.... and alk is decreasing which should be aiding the increasing in Calc....
The key here is to dose equal parts of both through the dosers and supplement manually what needs to be fixed... AKA Calc...
Hope this makes sense