Ok after who know how many hours of research about creating a specific mash water profile I might have scrached the surface and understand it a little. The thing is Im having a hard time finding what to do with the sparge water. What Im doing is starting with distilled water and adding salts to make a specific profile for the mash water but what should I do for the sparge water. I was thinking about using spring water cant imagine that would hurt. I just dont want to go through all this trouble to mess a batch of beer up with sparge water.