Hey guys, so I am a week late and I tested yesterday. This is what I got. On the picture it doesn't look as dark as in natural light but I can't tell if it's a evap line. The control line is really dark but the test window wasn't as dark as the control. So I don't know if I need to go buy a different brand or just buy from a different place. B/c I bought them from a convienant store type of thing on my college campus.