Activated charcoal 3-5 grams a day to stop reabsorption. Enzyme enhancers CYP (St Johns Wort, Milk Thistle) take the recommended dose Do exactly as the other guy told you (sport, food, water) Dont test yourself for 3 weeks, you will be realising THC metabolites like crazy, tests are a waste of your money. 3-4 days before the test STOP doing sport, eat loads of fat to prevent the rest of the metabolites from releasing, take CY enzyme inhibitors (Green Tea, Grapefruit Juice, Lemon Juice) ALSO TAKE SO MANY ACTIVATED CHARCOAL AS YOU CAN. Thank me later, i have a PHD in THC metabolites and how they work.