Dilution should work. I would practice, and be sure to use B2 or B-Complex to color your urine. The basic strip tests are *usually* easier to pass as they don't check for adulterants, PH, creatine, etc. However, my test was with a company nurse and they told me I didn't need a form...they did a PH test onsite and then sent my sample to a lab to be tested so be careful... Don't overdo it. Follow the sticky guidelines and practice w/ your test strips to see what works. Keep us posted!