Ditch the detox drinks they will not help you pass. Dilution will not work for you at this point and drinking tons of water wont either. Your best bet is to pick up some Quick Fix synthetic urine from a local headshop or order over the internet. I know you don't have much time but I think it could be overnighted. I wouldn't fool with the powdered urine... Its too much of a hassle and QF is premixed and ready to use. All of us here swear by it and it will never fail if you get your temperature right. For more information read the Substitution sticky at the top of the forum.