I'm pretty sure there's a map you can look up online that shows whether or not your region has hard water. I can't find it at the moment but perhaps you could Google around and see what you find.
2c/3a, dense, fairly coarse, normal porosity and elasticity, bsl
Low poo: Giovanni 50 50
RO: AOHR, Desert Essence coconut
LI: Giovanni Direct, Desert Essence curl cream
Stylers: kccc, HE smu
Sealers: argan oil or evoo