Quote Originally Posted by kickboater
This sounds lame but I have qf 5.7 2oz version and cant afford another bottle.I am aware of the new 3oz version and after reading about the big bowl like specimen collection deal in another post , I just want to have it all covered.
My GF can provide me a clean sample , and I have extra empty qf bottle so I wonder if you can top off the actual qf w/the real thing (clean urine) to get to the 3oz level line if necessary.
Spectrum says not to add anything but ,I`m still wondering.
Also I have never been asked for more than 2oz and i have tested several times in my past......you never know though.

Thanks in advance ,
a little paranoid here.
Adding clean urine won't make a difference in the sample. You did say that you have never been asked for more than two ounces... Why is this time any different?