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Michelle
Michelle

I have used everything from bleach to vinegar to jays fluide to try and get rid of smell of dog urine from my backyard I clean it 3 times a week but nothing helps

Dr Chemical

Vinegar should work as the smell comes from the amines, and the acetic acid (vinegar) should neutralize it. If it doesn’t, spray some White King Stainlift laundry prewash onto it, and let the enzymes take care of it.
Last resort, 1 part in 10 hydrochloric acid