how to beat a urine gravity test

I took 2 stinger detox, and drank 4 refills and pissed twice before going, when i pissed at the lab it was clear i did not add any b12 or b2 (mistake) i was turned away the first time for failing a specific gravity test, anyone know anything to take to add gravity , or will taking b2 b12 or vitamen c turn it yellow and will that add gravity , they let me come back a second time didnt pass the gravity test again , came back a third and passed the gravity and failed for thc, 4 -half hours after i took the stingers

I hadnt smoked for 5 days and the third piss at the lab was my5th piss since i drank it , my employersaid i can take it again

anyone have any thoughts greatly appriciated

Use the search feature, but from what I've read, Rolaids a couple of hours before the test will take care of that. I've also read that Gatorade helps out too.