A low pH additive..hmmmm...I'll have to look into that. I went in on a group buy for CaCl, and I just buy bulk Bicarb from the store...It's made the cost of the 2-part to next to nothing, but I'll have to look into what extra I would need for the low pH formula....I'm thinking it's just a carb/bicarb makeup....something new to research 
Thanks for the info Victoria...

Thanks for the info Victoria...