Heck yeah man. I know a lot about this topic and if you rarely use and the last time you did was 3 weeks ago, and you've been flushing out your system with liquids I an 95% sure you will pass. If you are on Cymbalta or Prozac and you have a lot of body fat and your smoked a truck load of pot then there is a chance you won't pass. Just stay hydrated and chill out.

When you ask the question “How long does marijuana stay in your system?” you need to take into account the fact that there is no simple answer to this question. THC (Tetrahydrocannabinol) can stay in a person's body for as long as 3 to 90 days after smoking or being ingested orally. There are numerous determining factors for how long drug toxins stay in a persons body which vary from person to person, such as the analytical method used, your health, your body weight, metabolism, fluid intake, the type of drug toxin, and the degree of exposure to the drug toxin. The speed at which marijuana leaves your body depends both on the speed of your metabolism, as well as on the half life of THC. It’s estimated that THC can have a half life that ranges anywhere from 1-10 days. It’s almost impossible to find out what that half life is, which means that it is very difficult to use it to calculate how long it will take for all of the THC to leave your body. For this reason, when you ask “How long does marijuana stay in your system?” you have to realize that it’s very unlikely that you’ll be able to get a usable answer. The most common period of time is anywhere from 3-30 days, depending on your metabolism and the amount of marijuana that you’ve smoked. This is unfortunate, since it means that while most drug tests can only turn up evidence of other drugs if you’ve been taking the drug within a few days of the drug test, marijuana could still be detected in a urine test up to a month after the last time it is used. If you smoke it occasionally it will remain in your system for up to 10 days. If you smoke marijuana on a regular basis it will stay in your system for as long as 45 days, and if you smoke marijuana at a constant pace, it can stay in the body for 90 days, Marijuana is fat soluble. It stores in the fat cells of the body, the brain, the liver, the kidneys, in other words the major organs. http://tinyurl.com/2rkvyr

You should be ok if you keep drinking the cran juice and water. But on the day of the test only drink a moderate amount of water. Lab testers can tell if urine is too dilute because they test for creatin, a substance that gives them a standard glomerular filtration rate and tells them what concentration of urea should be in your urine. (In other words they will fail you if they think you are trying to flush out your system). You want your urine to be just a little dilute to give you some extra lee weigh but not pure water where they'll know you are bullshitting them.

You'll be fine

go to this web site, http://www.hightimes.com/ht/home/ and for now you should be fine.

You are OK. it only takes about 2 weeks for THC to get out of your system, contrary to what most people think...30 days. Just don't smoke anymore & you'll have nothing to worry about. Of course, that 2 weeks can vary depending on how many fats cells you have since THC is retained in them.

your should be fine as long as you dont have alot of body fat since that is where THC is stored.

drink a lil bit or vinagar, cranberry juice or orange juice cuz it will clear your system out.