I'd been looking for this for several weeks. It never dawned on me to check my old blog.
Homemade cat urine smell remover:
1/4c hydrogen peroxide
1/4 c baking soda
1/4 c white vinegar
1 T. dish liquid
Here's what I did:
mix well & put on area to be cleaned. Rub in well (I just used my hands). I sucked it up with our carpet cleaner, then used vinegar & water in the cleaner to go over it again. The vinegar reeks, but once it's dry, the smell of the vinegar is gone, along with the odors.