Along with this, what are the common salts/ acids to use to change water PH and water profile? I see several different products available, some that automatically set the mash at 5.2 (somehow???) and others that are just containers of different salts and such. Where do you guys purchase those? LHBS? I haven't used Bru'n water before either so the info im looking for may just be on that program. I just don't know if I would understand what to do.
I use calcium chloride, gypsum, epsom salts, and baking soda. I also have lactic acid on hand just in case, but I don't use it hardly ever since I started using RO water.