I'm flying blind here. You said, "high in carbonates" W/ a light grain bill you really need "Less" carbonates. But I don't know how much you have to start with. The easiest way to reduce them is by dilution. I would go 50:50. Granted this may bring down your Ca+ conc. so normally I would add it back using CaCl, but I don't know the Ca conc. either. You can see how it gets ugly really fast. Just dilute it 50:50 (or not) and "FaGedda boud it"
Send me your water report so I can look at it if you want. But really, don't worry much past dilution right now.
I have some information from the local public works and it doesn't give specifics and just says it's high in carbonates so I have to send my water to Ward to have it analized. Wasn't going to do that yet but I guess with me getting adventurous I'm going to have to get that done.
Anywhooooo, you don't know this about me yet but, I'm not a worrier so I'll dilute and "FaGedda Boud It" while having a home brew and a bourbon or 3.
Thanks Doc,
Rob
The more people I meet the more I like my dogs.