text: how long does it take for weed to get out of your system? any advice?   awe a first timer!! well iwas there once lol. like in april. the best way is to drink  a lot of water and it takes about 30 days... so yeah i mean i was blood test and i thought they would find out but they didn;t cas thats not what they were  looking for lol.. but what ever its for i wish you the best.