The report has total hardness as CaCO3 at 251ppm. This was the figure I used in Bru'n Water.
I was using BIAB so my mash volume was 25L. To this I added 22.5ml of CRS solution and 13.75g of Malic Acid, targeting a mash pH of 5.36.
In my 12L of sparge water (I only used 6 in the end), I...