Well, you can get technical on the different kinds of vinegar but it is what it is. I say screw the water and use the juice...or at least use both. I like my apple juice on the rocks so I guess I did consume some water. I really think that the acids in the juice help clean your passages out long enough for the last dose of juice that hits the testing cup to pass through as clean as it gets. I do know that the juice is running hard through the body after ingesting it for 6 hours so it's not in there that long. I think I had apple juice leaving my a$$ as well because it was pure liquid in the end...I know, TMI!