Resolve or the generic version of it. Dog puked grass and left a green on brown carpet stain. This took it right out. I use my carpet shampooer right afterwards to remove the product with regular cleaning.
I would highly recommend a better potty system with your dogs. It sounds disgusting. :(
Try a product called Spot Shot. You can buy it at Walmart, Home Depot and probably some grocery stores. It comes in a dark blue can or I think they sell it in a spray bottle now. I never found any carpet stain that it couldn't remove. I used it to clean "mystery" stains on my carpet when I bought my house. I had no idea what those little spots were - they looked like rust. But Spot Shot got rid of them easily.
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