They have 3 validity tests to make sure you aren't dilute or using adulterants added to the specimen cup after you pee. Specific gravity and creatinine clearance are for testing dilution, pH for adulterants. Rolaids and Tums help with specific gravity as well as using a sports drink instead of water. Meat is for creatinine clearance.

You have a chance using dilution but I like subbing.

Get a thermometer and do some trial runs subbing.
FakeBoobsRule Reviewed by FakeBoobsRule on . n00b Needs Help! Ok, I've been reading this forum for hours and I've got two specific questions... 1) With the dilution method, what are the Tums/Rolaids for and how are they used? I'm female, 5'1", 200 lbs, clean for 7 months and smoked Friday, Saturday, and Sunday nights this week...I have a pre-employement drug test coming up that I just found out about tonight, although I don't know when it will be. 2) Is there a chance that dilution will work, or should I not risk it and go synth instead? Rating: 5