Need to know info:
A) I'm brewing an OB today/tomorrow.
B) I moved and this is the first time I will brew with my "new" water.
C) My water here is slightly hard, best I can tell without a test/water report. We've got quite a bit of limestone in the area & there has been the slightest hint of lime/scale build-up on an old faucet from before we moved in. Have no idea how long it took to get like that, but it's not that hard... I don't think!
I'm thinking for simplicity sake I'll maybe go with like gallons of bottled drinking water (moderately soft), and mix in my 2.5 gallons to make up my brew water. Is this a good place to start?
My follow-up question is what styles do well with hard water? Stouts, porters, & dark styles I assume... does it go deeper than that? Oh yea, does hard water effect your hop utilization?
Ps fwiw I'm a fan of the 'just brew it' mentality to see how things turn out. That's what I did with my first AG batch at my old place/old water & it turned out to be good stuff (slightly soft & I mostly made ambers, blondes, APA's etc).