Quote Originally Posted by easy_e
Here's a quick snapshot of my employment situation.

I am working for a railroad contracting company for which I had to take a pre-employment drug test as well as have had Federal Transit Authority / DOT testing now that I am employed.

I now have the job and have passed the all of the above mentioned tests. I wouldn't trade this job for a million dollars and want to keep it but still want to indulge on my time off.

I work for periods of 6-8 weeks and get 2 weeks time off then go back to work again. I only smoke durring that time off.

I have read all of the threads on dillution, substitution, truth about drug testing, etc.

The only reason I would be tested is a neglegent act which ruined equipment, endangered safety, or the very rare random for suspicion of intoxication.

What I'm looking for is a method of dillution that will always keep me prepared to test. As far as I understand I could stay very well hydrated so that my piss would be clear. Then keep some vitamin b on me incase they tell me I have to test. Discretly pop it on the way and should be pissing a dilluted yellow.

Questions and concerns about this are below:

1. What vitamin B do I need B12 B-Complex?
2. What about creatine levels? Are they tested in the initial strip test? Will they become to low if I dilute and how can I keep them elevated?
3. What OTC meds cause false positives. I would have them on hand and say I took one of them if I failed.
4. Is the second vial for the more expensive test considered a confirmatory retest? My paperwork allows a confirmatory retest for a positive result.


Thanks in advance.
Since youre taking a DOT test, and DOT tests are not observed unless there is cause, why not just substitute?

To answer the 4 questions:

1) B2, as outlined in the Dilution sticky

2) Validity testing is mandatory on all DOT urine specimens. Creatinine and specific gravity will be checked to determine a diluted sample. For tips on maintaining acceptable levels, read the Dilution sticky. Or use the Search button.

3) Sorry...Only cannabis can be discussed in the forums. All other drugs are off-topic. The confirmation GC/MS eliminates false positives by identifying the exact substance and its quantitative level. The GC/MS can distinguish between illicit substances and OTC/scripted meds.

4) In split-sample situations (mandatory on DOT specimen collections), sample 'B' is put away while sample 'A' undergoes the analysis. If a donor opts to challenge the results of sample 'A' , then sample 'B' gets tested, primarily to rule out lab error.