^^^that was a bad idea....
been on probation for 11 mos. i passed my first 14 bi-monthly tests using dilution and bunches of vitamin B to tint urine. these tests were for probation and DRUG EDUCATION CLASSES. i also quit smoking for about 5-9 days before the tests. other than when i was abstaining, i would smoke many times daily.
i failed my fifteenth w/ my dilution method for the D.E. classes. i didn't have to meet w/ my probation officer for three months so i was only tested once a month around then. i continued to fail two more tests w/ D.E.
then, as i began meeting w/ my P.O. again, I failed that first test too. so, facing a violation, I had a test coming up within 9 days. i continued smoking and sought a clean donor.
so, sorry if you read all that but, dilution is not a good idea if you're not willing to quit for a good week+. tape a pee-filled-condom to your inner thigh. it works.