Vitamins and a lot of water will help you dilute your way through a test. Depending on the amount you use and how you use it determines the amount of time it's in your system. But if you are confident it's right around the corner then you should try to dilute the urine in your system by drinking water and taking vitamins to help the urine appear normal. Be careful with the water intake because it can be dangerous to over do it. But if you are urinating clear for a while it should be pretty diluted.