So I am going to try and mess with my water profile for my next brew. Going to filter through a charcoal filter to remove Chlorine, then add campden tablets to remove Chloramine, then add brewing salts to build a water profile towards the beer I am brewing. My only question is how do I go about adding the various salts? Do I add them seperately to my mash water and sparge water? Or do I combine my mash and sparge, then add salts, then seperate the water again. Does it matter? i'm not sure I have a container that will hold that much water. Help appreciated!