im also quite curious about this. My guess is that they make you just retake it immediatly.

What i would do is try the diluting. If they figure out, bring substitute piss as back up. That way, if they test you immediately, you will still pass.
TheRipper Reviewed by TheRipper on . Dilution Fail Retest I'm gonna try N2's excellent thread on dilution for my next probation drug test since I fucked up and toked 4 hits of mids last Friday. If they do catch my diluting, on average for those on probation, how long do they wait to retest you after they don't accept the first test because they see it has been diluted? Rating: 5