“Ashbeck is about 20mg/l alkalinity, you want 40-50mg/l. Let’s call it 45mg/l for arguments sake.
Sodium bicarbonate added to water gives a result of about 60% as alkalinity.
So divide 25 (20mg/l you already have, plus what you need to hit 45mg/l) by 60 and you get 40mg/l of sodium bicarbonate, multiply this by 5l and you add 200mg to 5l of Ashbeck. Use 0.01g scales to measure this out.”
@LMSC , perhaps I heave misunderstood , very likely 😳
But, what I thought @MWJB meant was he didn’t like the taste of Ashbeck, it didn’t scale the Brew boiler and if SB was added it got rid of the potential corrosion / taste issue from the low alkalinity?