My gf is a figure competitor and she has her first photoshoot for fitness modeling in 10 days from now and will be needing to pull some (not all) water leading up to the shoot. I have la$ix for her, but neither of us knows how far out to start running it. She will cutting her water intake leading up to the shoot and probably be down to only a half gallon the day before the shoot and no water day of. I appreciate any input. Thanks