Calling all RO users

[Gbark]

Hi all,

Do any of you that use RO water use a Calcite Mineral Cartridge to bring the GH levels up?

Or is it just as easy to use a GH booster?

 

[Gbark]

I was thinking of one of these

http://www.ro-world.co.uk/acatalog/Pentex_Filters.html

Pentek GS-10CAL RO pH Stabilizing In-line Water Filter

Does anybody use something close to this for their RO water?