By doing a Search with the terms "drinking water useless soluble", you'll discover that drinking water is only helpful on the day of the U/A.

Niacin is an ancient myth. It does nothing to help pass a U/A.

3 days before the scheduled U/A, take one more THC test kit again using the first-mornings void. If youre consistently testing negative with the first void, youre good to go. :thumbsup: