Hey everyone. I have been reading the boards here because I have to take a piss test for a new job. It seems that the consensus here is to substitute w/ Quick Fix. After reading about this synthetic urine it seems that this product can have some settling of sediments on the bottom, so you have to shake it up before and after heating, and before you use it. My problem with this is that I live in the middle of nowhere and samples have to be sent in to a lab for testing. I'm worried that there may be some "settling" in my sample during shipment to the lab. Has anyone had problems with this settling of sediments with Quick Fix? The last time I had to take a test, the nerdy lab tech was holding my sample up in the light, as if looking for some kind of foreign debris floating around. I was using someone else's clean urine that time so I wasn't worried. But after reading about Quick Fix, maybe that was what he was looking for? What do you guys think?