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Title: doesn't work on dark carpet
Review: We have very dark maroon-colored carpets throughout our entire upstairs and I found an area our new cat urinated on in an upstairs bedroom. I bought this to see if there were other spots he used in that room since I haven't been able to get the smell out. Nothing except lint shows up on this color carpet. I did find a lot of splatter-looking things on the walls, but I had to crawl around and actually sniff the entire carpets upstairs to see if he had used other spots, which is what I was trying to avoid in the first place. Downstairs where we have lighter carpets it did light up in the one area I know he used down there and had already treated, and it is kind of fun to use--you almost feel like a forensic detective (I was horrified at our toilet). But overall it wasn't very helpful to me.
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