I have done some research, as well as a few home experiments on urine testing. Here are some things I have found that can help in passing urine tests. B Vitamins can dilute urine samples, while keeping the urine yellow to avoid any suspicions. Creatine consumption increases your metabolism, therefore it will metabolize marijuana faster. Zinc passes through feces. Zinc bonds with marijuana metabolites. Instead of your marijuana metabolites appearing in your urine samples, it will appear in your feces. Papaya fruit contains an enzyme that can eliminate traces of marijuana metabolites. Drink lots of water. You can find b vitamins, creatine, and zinc sulfate at your local vitamin shop. Your local grocery store may sell papaya fruit. You should take the recommended dosage of b vitamins, creatine, and zinc sulfate on a daily basis, as well as drink at least 10-12 glasses of water a day. You can eat papaya as little as 2-3 times a week.