THC stays in your fat cells. unless you have a high metabolism and zero body fat, you've got to dilute your urine stream. See THC stays in fat. therefor the fat is constantly secreting thc into bloodstream then into urine. So RIGHT BEFORE(maybe two hours or so) you've got to dilute you're urine.. increase your creatine intake(either with a supplement or eating more red meat or protein) and taking a triple dose of vitamen b-12 so urine retains its color. Or buy a cleanser. goto Passyourdrugtest.com for more information and this kind of post is more suited for the drugtesting board.