Source please, as I don't believe lots of the water claims. I drink lots of water, by the way, so it's not like I am taking this personally, but a lot of that sounds completely made up.

Also, on the "Coke" side, if the citric acid in the Coke is what will "clean your toilet bowl" wouldn't orange juice or lemonade also do the same thing?

A stronger acid that is often used around the house to clean things is white vinegar, which I use to clean litterboxes.

I think folks forget that we human beings are acidic creatures ourselves ... all acid ain't bad, like all alkalai ain't bad - it's just too much in either direction that should scare you. I remember when certain shampoos labelled themselves (as a selling point) non-alkalai. Bet they wouldn;t have had the same marketing buzz with "mildly acidic" - but acid is the opposite of alkalai ...

We humans are funny (as in peculiar) critters.