Originally Posted by samc
Check out the Water Primer thread in the "Brew Science" sub forum on HBT. AJ Delange lays out some basics of water adjustments to get your feet wet. Basically a bit of Calcium Chloride, some Gypsum perhaps and you are good to go on the road to water adjusting.
That's what I do. I don't use 100% RO water but a mix of RO and my tap. I have high bicarb in my tap water, that's why I cut it with RO water.
But the water I end up using looks like this:
Hco3- 121 (still a little high, but it tastes fine in this beer)