I use a Kalk reactor and dose it consistently. It maintains Alk and Cal as well as increases PH.
I test 4 times a day with a Trident but the Kalk only makes up about 1/2 of my need for ALK and about 80% of my evaporation top off.
I then have a doser adjusting the rest on 24 doses a day.
I will be moving to trident controlled dosing for 2part shortly.
The BRS two part is actually 3 parts. But 4 in my case. I dose ALk, Calc, Tropic Marin part C automated and then dose magnesium by hand occasionally as I see a drop in testing trends.
i will also be adding in part A and K from tropic Marin for trace elements once ICP tests show it is needed.
I should add this is a new tank set up for me but not a new process. I have had success with this process in the past just moved and set up a new tank.