The stains are from dogs and its on pile carpet

Check out "Off"' at big box store or hardware store. Read directions. May work.

Good luck

Chuck

The safest way to remove urine stains is to:
1. Cleaning the area making sure to remove as much urine and soap residue from the carpet will give you the best start.
2. Let it completely dry
3. Spray hydrogen peroxide on the remaining stain. In most cases (depending on fiber type) this should remove the yellow, but not the odor.
(Caution) Always pretest in an inconspicuous location to make sure it isn't going to remove color from the carpet.

If you are having any trouble, call your local IICRC certified carpet cleaner and they could definitely help you out.

cleanspree.com
Boise Nampa Caldwell Idaho
Clean Spree

I would use an extractor type carpet shampooer to remove as much of the urine as piossible. Then treat it with an enzyme that eats what's left. I use Where to Buy - Nature's Miracle