Will this work?

Okay, my parents test me with a cheap home test. My plan is to use my own urine since I'm clean right now and when it starts getting old and dark to add water to it to make it look new again. It'll still smell bad but I was just wondering if anyone has tried this. Right now I have some 4 day old urine that I'm waiting to test it to see if it'll work but I'm going to wait like 2 weeks. So has anyone tried this or know if it'll work?

 

will what work? your piss isnt going to test positive just because its old and diluted...

 

I know. What I'm asking is will adding water to dark old urine make it look new again despite the smell?