Get synthetic urine, I tried the dilute method didn't work for me.
I drank water only for a week and a half, more then I would have ever drank.
The day of my test I drank about a gallon and a half of water just before taking the test.
I didn't use the start or end of my urine stream, just like all the "experts" say to do.
Took my test and failed, it was not even close to passing according to the lab tech.
So my advice buy the fake pee, it will work 100% of the time as long as you get the temp close your fine.