yeah the % of water weight rises as BF declines.
I read the stupidest fucking Paleo blog the other day where the person was trumpeting their massive fat loss in 10 days, with no accounting for water weight...low-carb Paleo diet + CrossFit for a year, 8% of so BF, gained 10lbs in a single week on vacation, lost it again after a return to strict Paleo. Thought it was all fat, and isn't Paleo/CrossFit awesome. smh