So I'll show my naivete' I guess here. If you use distilled or RO water every time, sure you have consistency. That doesn't mean you'll make great beer, I get that. But what about our great beers now that are being crafted? I'm not arguing individual tastes, but Tree House or Troegs or Hill Farmstead or Alchemist...do they have in house water filtration and chemistry wizards? Or did some dude open a brewery, keep working until he made a beer that put him on the map then said "Wow, I can make this beer with this here water I'm provided with by this town or well." While I can source grapes easily, I cannot source GREAT grapes easily, which is why I gave up on wine making. I could not in any way make wine as good as some of the nicer French or CA Cab's without having grapes flown in overnight. I would hope I could make a decent beer however but I'm thinking water is like grapes, easy to come by but hard to get the best stuff? I don't want to make anything harder than it needs to be, but I do like total control. I'm visiting the LBS tomorrow, I'll see what he says.