depends on the type of drugtest probation usually just hits you with a dip stick test to check positives on the spot so if your all negative on the dip stick they wont send it off to the lab... the dilitution and water loading sticky is a great way to fool the dip stick test job send to lab all the time probation gives too many tests annually to do that they tend to use dip stick to cut down on costs i suggest you stop smoking on probation n just drinking gives u less heartache