sideeki -- does that (entirely) work in a system like Flint's that's just been scoured, for over a year, by the more acidic untreated river water, leaving (more) lead freshly exposed to whatever water flows through? -- does restoring a proper pH stop (freshly) exposed lead from leaching into the water?
Greensburg, KS - 5/4/07
"Eternal vigilance is the price of Liberty."
from John Philpot Curran, Speech
upon the Right of Election, 1790
F6