Look, I don't know much about this, or anything, but I've been told when you have high water retention, you need to drink a lot of water to get the water weight out... Something along the lines of, when the body is being fed a lot of water, it will stop holding onto water because it knows it's getting enough now..
I don't know, it doesn't make much sense to me, but all I know is, when I'm out drinking the night away, the next day I'm pretty much ALWAYS 3-5lbs heavier... I don't understand this..