i am forced to take UAs while being watched from the front so substitution is NOT an option. there is a sign that says IF YOU MESS WITH THE TEST YOU GO TO THE WORK HOUSE FOR 45 DAYS.

one time i went in there fully diluted and pissed gatorade ice clear urine and they rejected it. every time after that i know the urine has been diluted but ive taken vitamins or used testpure to give the sample a bright color so that they dont even suspect dilution

what they do is they either reject the diluted samples on the spot by a visible examination or they put the OK ones in the fridge to be sent away. after that i am not sure whether or not the labs are able to determine if it is diluted or not, the testpure adds the missing ingredients in diluted urine to make it able to pass

i have a feeling that if you can change the color to match normal urine when your urine is diluted that you can sneak by because i have never failed besides that first rejection