We all know we shouldn't do it, the question was not to use or not use, but will plenty of water clean out the urine, am I right? I am not going to sit and preach to this person. They know what is right and wrong and they will do what they want, so my answer to them is "yess, if you drink a gallon or more just before a drug test, the heroin will usually come out, the urine must be clear like water, and pee a few times before the test. However, be careful they don't call it a dirty anyway if they think you watered it down.I'd take my chances anyway.
If you just used, it will not flush out fast. Best to eat right and stay clean. Sure drink plenty of water, but if you keep using you will die
Not that I believe, but you should even had that. If you take drugs, you will face the consequences!