[ARCHIVE ANSWER]
A smoker that smokes a lot of weed will take a minimum of 27 days to pee clean, but if
you are clean, and if you have never ingested THC before, you are clean. It was out of
your system at detectable levels in 48 to 72 hours after you smoked. Some heavy smokers
– those who smoke daily – report that they are able to cleanse the THC from their body in
four days, and I passed their piss test. Take your piss test with confidence
Note that drinking massive amounts of fluids can interfere with your normal levels of
substances in your urine that are used to validate the test results.