My carpet has several yellow stains from cat urine. I had a company clean the carpet but the stains remain. Is there some kind of product I could try or do I need new carpet?

Answer: Don’t give up just yet! The best way to remove urine is to use a cleaner with active enzymes in it, like Pet Stain & Odor Pre-treat for Carpet & Upholstery. After testing the cleaner on an inconspicuous area, apply it on the stains, cover with a wet towel and allow the cleaner to work for 24-48 hours. If kept moist, the enzyme action within the spray will continue to multiply and “eat” the microscopic particles that make up the stain until they are virtually gone.

Follow up the spray cleaner by deep cleaning the carpet with a portable or upright deep cleaner and Pet Stain & Odor formula for portable deep cleaners or Pet Stain & Odor Advanced Formula Plus for upright deep cleaners.

If this doesn’t work, it is possible that the ammonia compounds in the urine have made permanent changes to the carpet’s color, and even if all the urine is removed the color will never match again. This is more likely if the urine stain has been exposed to lots of light. In such case, you may have to consider replacing the carpet.