Here's some SNPA info, if looking to emulate their water chem; mash and kettle addition targets are around 100 ppm Ca, 175-240 ppm S04, 40 ppm Cl. Mash pH 5.30. Base brewing water is around 40 ALK, acidified to 5.35 pH, -6 RA. They only use CaCl2 and CaS04.
I've used this info in the past to...