My mash, sparge, sanitation and everything else stays consistent between my beers. I have been adding my strike water to my MLT, most of my grain, then the brewing salts, and then the rest of the grain. After that I mix it all up before letting it rest. I add the second addition of brewing salts to the kettle and don't add anything to the sparge water.
Is the calcium carbonate (chalk) not getting dissolved? Is there a better way to add the salts?