[Quote]
If the solution becomes too alkaline from dilution by water then the risk of mold formation increases.
[/Quote]
There's no water added. I just add one tablespoon of DE to a bottle of ACV. Over time, this mixture produces more and more orthosilicic acid. Now, whenever I want to take this mixture, I shake the bottle to disperse the DE that has settled at the bottom. Then I pour two tablespoons from the bottle into a glass of water and drink it. This way I am able to do two things: I get the orthosilicic acid produced from the mixture as well as the DE powder (which is useful for killing parasites in a "mechanical" way).
Since the ACV + DE mixture in the bottle is acidic, I guess I shouldn't have to worry about the mixture forming mold then.