I finally broke weak and purchased an RO+DI system. I am wanting/needing a Ph of around 6-6.2--Maybe a little higher, maybe a little lower, but right now that's my mark.

I have Barr's GH Booster, so I will be using that, at least until its gone....So I need to understand what I am doing......

I am assuming that I want a KH of about 4, Correct? What about GH?--what am I looking for there?

I've read a ton of threads here and at TPT and APC, but its all kind of gotten jumbled around in my head.

What am I looking for for KH and GH with a PH of 6-6.2 without C02?

TIA