I noticed this thread has a lot of views so I thought i'd share my story of passing my drug test and hope that it helps someone pass a test that punishes people for a harmless drug. I am 5'9" 140 pounds and have been a heavy smoker for the last 6+ years. I smoke every day and go through about an eighth every five days or so. Recently I was given a job offer and was notified that there was a pre-employment drug screen. After not smoking for 21 days, here's how I passed my urine test using dilution:
-I immediately began exercising on day 1. I didn't work out every single day for the next three weeks but I tried to get as much exercise as possible. I only drank enough water to stay hydrated (you don't need to drown yourself with fluids like some people say, it doesn't work like that).
-Then about five days before my test, I started taking creatine pills (by Six Star Pro Nutrition) every morning and stopped exercising with 3 days before the test. The creatine pills build up your creatinine level which the clinic looks for in your urine. Make sure you start taking the pills no sooner than 48 hours before your test or your body might not have enough time to metabolize it.
-On the day of the test, I started drinking large 32 ounce bottles of Gatorade 3 hours before the test (lemon line to probably help with color but doubt it mattered). I've read that Gatorade is better than water because it helps keep your urine dense when they check it for specific gravity, which turned out to be true to my knowledge. I bought three 32 ounce gatorades. Chugged the first one down 3 hours before the test and then chugged the second one about two hours before the test. These two gatorades had me going to the bathroom every 10 or 15 minutes within an hour of drinking the first one. If you aren't getting up to go to the bathroom every 10 or 15 minutes, you probably aren't drinking enough and should increase your intake. Make sure you go at least four times and then test yourself with a at-home test if you have one (and you should, the barely cost anything on eBay and are reliable).
-I took a B-100 complex pill about an hour and a half before my test while drinking the third and final gatorade. The next two times I peed were clear but right before I left to the drug testing clinic, my pee started to turn the greenish yellow color I needed. When this happens your pee should still be colored for the next 3 to 4 times you go so you know you're good.
-An hour before the test (half hour before I left the house), I stopped taking in all fluids. I think this is an important step because if you walk into the place right after drinking the fluids, you probably wont pass the density aspect of the test. You want to let the urine sit in there for a little bit so that you aren't just pissing colored water. A half hour before the test, I made sure to pee right before I left the house because I knew that by the time I got to the clinic and filled out all the paperwork, I'd be bursting at the seams. And sure enough I was. Expect to wait 20 minutes or so from the time you walk in to the time you pee. It is uncomfortable but not impossible.
-When I went into the bathroom to take the test, I had to go so bad that I wasn't worried about whether or not I was going to catch the middle of my stream (which is the cleanest). After peeing for about ten seconds I filled the cup up to the line and was happy to see that it was a bright yellow. The lady taking my test then tested it for specific gravity and she said it was fine and that I was "hydrated". She then placed the test strip into the urine and within minutes I was told that I had passed!
After reading around for weeks about the best ways to pass a urine test, I truly believe that this method works the best. It took me several tries to perfect the time for the vitamin B and the amount of fluid needed to dilute. Definitely buy some test strips on eBay and do a test run a few times to see how long it takes for the vitamin B to cause your urine to turn yellow and also how much you have to drink to come out negative. It is also a good idea to not smoke until you get the official word from your company that you passed because I have read stories about people passing drug tests and then smoking only to get a call that the clinic had screwed up the paperwork and they needed to come back again. Good luck and I promise if you put in the effort and do some practice runs with good results, you have nothing to worry about the day of the test.