I've looked at that wet an forget stuff to use on vinyl fence an wondered if it really works. I saw a clip online about using copper sulfate an water in a specific mix as being the same ingredient also. I am concerned on its effects on any screws though. I'm gonna try the mix on a side piece of vinyl an see what it does after a while in the shade. Has anyone tried that for inhibiting the growth for a little while at least .? I've also used borax/baking soda /an washing soda to do it [a proper mix] an that worked for a while too. Any info/tips is appreciated

Hi all, I'm new to this forum so pardon my ignorance. I am very new at DIY repairs. A while ago one of the rooms in our home started smelling odd. This room is rarely used. However the previous owner did have a pet. The room always smelled a bit odd after we moved in but we didn't care much about it because it wasn't used a whole lot. The smell did seem to get progressively worse. I am not sure if pet urine smells can suddenly get worse. Anyway, I suspect either pet urine or a dead animal in the wall. So I took the carpet off and sure enough there were a few stains on the carpet. However I think the smell has gotten into the subfloor because even after removing the carpet and the padding the smell still is around. I hoped it would've reduced at the very least. I intend to use "Nature's Miracle Advanced Stain and Odor Eliminator" and then simply use an Odor Killing primer to block the smell out before installing a new carpet. Does this seem like a good idea? After taking off the carpet I see the subfloor has a lot of dried up paint. Should be cleaning that off before applying the primer? I've attached an image for reference.