Water, tea, soft drinks, etc. are fine. Drink 3 to 4 quarts of fluid. On the day of the test, cut back your fluid consumption to a normal level. Excessively diluted urine samples will cause suspicion. Never give the testers your first urine of the day.
Toxins build up overnight and are heaviest in the morning.
If possible void the first and last portion of your urine stream into the toilet. Only catch the middle of your urine stream for the sample. This portion will have the lowest amount of toxins. You might also want to take eight 325 mg aspirins 4 hours prior to the test. All rights reserved 1999 Books Etc.