I was told to drink lots of water (LOTS) then get some Vit C just like HARDDON said (this makes your piss normal colored again instead of a clear color which indictates dilution. Then the day of your test (being tomorow) you need to piss once before the test. The during the test you need to start pissing then "catch" the middle of your piss then end it back in the toilet. I know a lot of people who passed it this way. Also if you had a chance to order shit online instead of being tomorow, they have a shampoo that gets rid of the traces in your hair. There was this really nice website (can't remember it right now because I'm not at home) that had all these solitions for the tests. Goodluck brother and I hope you pass your test.