B Vitamins aren't making urine yellow

Recently I have been using the dilution method whenever I visit some counseling sessions just in case they do a urinalysis. I am currently under the impression that B vitamins make your urine yellow, so that the testers won't think I have been diluting. However, each time I dilute I drink approxamitely two gallons of water before and take one B6 (100 mg) vitamin, one B1 (100mg) vitamin, and one B complex (? mg) vitamin an hour and thirty minutes before my session. Every time I do this my urine still appears completely clear. Am I not taking them early enough? What is the problem - why is my urine still clear?

it never gets yellow? i found that it took me upto about 3+ hours. And it makes your urine a neon yellow, which might look suspicious.

take vitamins

riboflavin is what makes piss yellow.... i think riboflavin is b2, its in most b complex's tho