so. instead of listening to all of the uneducated twits here, lemme give you some advice. been researching this for a bit now because i have a DT soon as well.
there
is
no
fast
way
to
get
rid
of
THC
from
your
system
unless you plan on spending 50 bucks on a drink that probably won't work. getting the actual THC out of your body is the least of your concerns, since you excrement THC and not urinate it. they test you for metabolites in your piss as well as creatine levels and different biotic (or whatever theyre called) levels. the only hope you have (as i SMS'd you earlier) is to dilute the urine. before the test, drink a lot of water, like, a stuffload of water. make sure you piss in the morning before the test also. when you take the test, make sure you don't use the first part of your stream of urine, or the last part. by this i mean, whip out your richard, piss in the toilet a bit, piss in the cup, and then piss in the toilet the rest of the way.
a note; make sure that you take some vitamin b-2 and b-12 and a b-complex the night before the test, especially if you're going to dilute with water. a lot of people will require that you take a retest or completely fail you if they think you're trying to dilute the urine. the b-2,12,and complex add color to your urine and make it seem like you're not.
another thing you can do, it's a bit risky, is to take an eye dropper with visine in it, and put a few drops into the cup. i believe the saline in the visine sterilizes the piss some more, but i don't know this as a fact for sure.
another thing to remember; don't work out for 48 hours before the test. when you work out, you burn fat, and in turn burn THC which gets it released into your skin and blood. gotta make sure you don't have any of it in your blood stream before, since theres hints of blood in your urine.