First time post sorry if this is in the wrong spot. Please point me in the right direction if so please! I have a basic pre employment drug test for delta airlines at a concentra facility. I happen to have a bottle of the magnum synthetic urine. One of my friends has recently used this same brand from the same store and it worked no problem but I'm here looking for some reassurance. His drug test was in Houston at a completely different facility and mine will be in Austin. Neither of our products have a powder to add to the urine. If anyone else in Texas has had any recent experience with magnum please let me know your results.