Hi all, I'm a chronic smoker (pipe, 3-4x a day, every day) for the past 2 months -- I'm about 200 lbs and I need to pass an employment drug test. I'm currently applying for jobs since I just lost my last one and need to know what will work to test negative. I bought the Puriclean Instant Cleanser (advertised to work up to 500 lbs and asap) and some home tests... so far, the tests have come up positive. I drank it 2 hrs ago and have tested 4 times, all positive. Any advice?