How do I lower my PH in my solo cups?

[The_NorthEast_ChileMan]

Probably better to call it calcium carbonate which is its correct name rather than lime.

Or could just call it dolomitic lime, which is exactly what the OP did.

If you did Chemistry ages 16-17

I never took chemistry & it's been 50 years since I was 16 even if I did. The OP asked, "what is the best method to lower my PH in my solo cups?", so my question is do both of the above lower pH per OP question? And remember, OP asked "what is the best method" so I spent some time online and found calcium carbonate is CaCO3 and Dolomite is CaMg(CO3)2 so a non-technical explanation of the difference between these and the reason for one over the other would be appreciated. 
 
TIA!
 
NECM
 
`

 

[MnSuperHots]

Lol, only in forums^
Lol

 

[solid7]

Lol, only in forums^
Lol

Yep, pretty much. LOL