![Shame on you [-X](./images/smilies/eusa_naughty.gif)
260 Alkalinity here
![Wink :wink:](./images/smilies/icon_wink.gif)
Edit with acid treatment.
And what Eric and many others said. My alk is low enough (about 30) that crystal malt, which is acidic, is all I need and what I want but I need to add a lot of calcium through gypsum or calcium chloride to brew British ales. You probably won’t have to if you add sulfuric or hydrochloric acid, CRS/AMS is a blend of these. RO would only be for lagers.guypettigrew wrote: ↑Mon May 11, 2020 6:37 pmHard water? As Jim said above, it's the alkalinity which is important. And that's easily sorted using CRS/AMS.
RO water will have nothing in it (except water!) so will need stuff adding to get it right for brewing.
Do you have an analysis of your water, sonicated?
Guy