???High alkalinity???

Correct me if I'm wrong, but raising your CA doesn't lower your Alk.
I'm doing water changes with DI water, but my AK still stays high.
I'm at a loss, seeing as I have no idea how to lower my AK.
 
Yeah,I think its the other way around,Raising Alk. lowers your CA.Do you add some salt mix to your R/O water before topping off,or water changes?
 
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