What is in the army MEPS drug test?

I did the MEPS and i was in the same postion as you smoking pot everyday. I got off it and my recruiter told me to drink a lot of water and more water. It took 3 weeks for it to get out of mine. At MEPS they do all kinds of testing and they do urine test you for drugs. You will be fine as long as you dont smoke and you drink **** loads of water. Im joining the army too, good luck