The At home drug test showed a faint T line

I hope you guys and can offer a little advice

I have another drug screen coming up and I have taken 2 at home drug test and both times the T line has come in very faint. These test were performed by me when I had not urinated for a few hours and had not consumed very much liquid( water,etc) the urine test states that if you see a faint line next to the T that it is negative no matter how faint the line is. I want to know if you guys think I will be ok in passing a urine test for my new job with dilution or should I go ahead and use a substitute which I have in my freezer right now.

try not to get your urine that fisrt comes out or the last that comes out those will be the most toxic