BEST ways-abstinence
OR-2 gallons of cranberry juice the night before, and as much gatorade as you can out through your system the day of.
yeah, you want dilution, dilution, dilution. Piss more than you have ever pissed before, and then piss once more for the test.
I always cheated at the methadone clinic, though. I would get a visine bottle, put clean urine in there, put the cap on, and 15 minutes before I arrived at the clinic I would buy a cup of hot water and a lid. I would throw the bottle in there for a few minutes and then took it out and put it under my arm. Then when I got there I would go through the patdown/empty your pockets thing, then go in the restroom and squirt the visine into the test cup. There was a temp gauge on the side of the cup, and I am not sure what it registered but I never had a problem. I always wondered if it was too hot but they hardly ever even looked at it.
Then they put in cameras but they didn't turn them on for months, and I am not sure if they ever did but at that time I had quit smoking weed and taking speed so I tested clean anyway.