Most of the 'pass piss test tricks' never work, not so sure about hair, blood, and mouth swabs, but having failed 50+ piss tests on probation when I was 15-17 I can surely say that the drinks work disastrously. I was tested weekly for 2 years, thats 104 tests, give or take (got a break here and there). I failed half of em, the first year I failed every single test, thats 52 freaking tests and I tried drinking gallons of water, drinking vinegar, buying the drinks, combonations of both, all that crap, the only thing that showed slight but useless results was the drinks. I used the drinks about 8 times, 7 times it showed deluded or failed tests and once, just once, I passed, but I think it was still deluded (not entirely showing a clean result, but not enough to say for sure whether I was smoking) so really most of that crap dont work, I eventually had to stop smoking for a year, then they finally let me off and now I can smoke in peace


Oh and important tid bit, anyone who still thinks 30 days of non smoking will make your piss clean is bull, when I finally quit smoking I failed tests for the next 2 months and nearly got sent to rehab because my P.O didnt believe me, but every test it would show as more deluded, so although I failed she could tell I wasn't smoking, so just know if you smoke, nightly like I do, it takes at least 2 months, obviously varying with weight/height/ammount of use ect, but I wouldnt tuse 30 days as a rule of thumb for piss tests anymore.