I tried diluting using expensive detox liquid but had smoked about 24-36 hours before. I tested myself 3 times at home, and failed all 3 tests. For dilution to work, you need to not have smoked for at least 2 days or more. Be sure to get several home drug tests to test your own urine. Had to use synthetic urine, but passed.

Dilution worked for my husband, but he is not a heavy smoker and had quit smoking several weeks prior to the test.