[NAGDU] Removing urine smell

[Tracy Carcione]

I am having a big problem removing the urine smell where Krokus peed on my
carpet and hardwood, probably because I didn't find it right away, then used
the wrong cleaner the first time.

I have tried the Nature's Miracle, and also baking soda, and scrubbing with
soap and water, but I can still smell it, so I'm sure it's very clear to a
dog.

How much Nature's Miracle do I use?  I get the carpet damp, but not soaked,
then leave it a while before vacuuming it up.  Is that enough?

I have a rug shampooer.  Should I drag it out and try it?  The spot is hard
to deal with, being very close to a wall, and at a point where the carpet
meets a hardwood floor.  Being thorough, Krokus got both surfaces, and,
knowing him, a bit of wall as well.  Since I yelled at him, he hasn't tried
peeing in the house again, but, with the big smell, he may decide it's a
fine idea.

Anyone have any cleaning advice?

Tracy