ESV B-Ionic

[TK_KW]

I recently switched from Esv 2 part, B-Ionic Alk to BRS powered soda ash. I should have looked into it prior, but noticed my Alk significantly dropped using same dosing ratio. I've been slowly raising the dose to offset the drop. But what is the ratio I should have automatically switched to, when I did the switch?
My Alk use to sit at 8-8.1 using esv dose. It has slowly crept down to 6.9 once I had switched to soda ash.

I use to dose 68 ml over 24 hours of esv

I've currently got BRS soda ash mix up to 84 ml over 24 hours. It's still sitting low at 6.9

Thanks

 

[KStatefan]

The ESV is 7840 dKH and sodium carbonate if mixed to Randy's recipe is 5300 dKH. 1.48x stronger.