How long does weed stay in your system if you only took 6 hits and didn't get high?

If you only smoked 6 hits of weed, ONE time, then it shouldn't take more than a week to 10 days to leave your system. Maybe 2 weeks if you have a lot of body fat.

Thirty days is how long it takes to leave your system if you've been smoking every single day for several months or years. There is no way it would take 30 days to leave your system if you only smoked once.

Don't bother drinking water, cranberry juice, vinegar, pickle juice, etc...marijuana is fat-soluble, not water soluble, so no liquid will help remove it from your system.