Ok. so i got a call from my PO yesterday saying on my voice mail that i had to take a drug test. i did not call back till today. used the excuse of how i cant use my cell phone at work. any ways, i told my boss i had to leave work this am for an emergency. went straight home and started chugging water! 1st one mixed with certo and 1 leter power aid. then drank 3 more leters of water. i peed twice then went take it. oh btw i took 2 azo standerds the night befor. i passed the test! i fermly believe dialution is the answer to passing drug tests! i dont know if the certo or azo helped they were mainly procautions. but yea to all who want to know, water water water is the way to go! but you might want to take azo the night befor or vitamins to add color to your pee. some will except clear pee but most will fail you. so be safe and find a way to add color to your warm water! haha! peace!