Then at about 2 I drank ONE packet of Certo mixed into a glass of water. It tastes really sweet but has NO flavor so this was not a plesant experiance. After that I drank about a half a gallon of water and peed 3 times between drinking the Certo and taking my test. I passed and I got the job. I know for sure that if I had just drank the water that this would have a different ending, I dont know why Certo works. But it seems to.
Youre merely assuming that Certo was the reason for you passing. An assumption based on others trying to keep an ancient, debunked internet myth alive.
It obviously hasnt occurred to you that the copius amounts of water you drank (which in effect, diluted the THCA concentration in your urine to where the sample registered below the cutoff thresholds of the drug screen) was the actual hero.