Yes you are very lucky, there are PH and Creatine levels in the synthetic that you could have thrown off by adding the water, but in reality all it did was dilute the sample. I have used synthetic urine for years. First used Quick fic then Psure, now Agent X. But I use the dry sample that you add to water. It will be the first time using this type. I usually used the premixed but in all it works the same. As I have to take a DOT drug test and I used it once before and it passed so now I am hoping for the second time,