Methods for Removing Set-In Urine Stains from Carpets

Quck answer

To remove old urine stains from a carpet, follow these steps:

1. Blot the stain with a clean cloth or paper towels to absorb as much urine as possible.

2. Mix a solution of equal parts white vinegar and water.

3. Apply the vinegar solution to the stain and let it sit for 5-10 minutes.

4. Blot the area again with a clean cloth to remove the vinegar solution.

5. Sprinkle baking soda over the stained area and let it sit for a few hours to absorb any remaining odor.

6. Vacuum the baking soda and check if the stain is gone.

7. If the stain persists, repeat the process or consider using a carpet cleaning solution specifically designed for pet stains.

Remember to always test any cleaning solution on a small, inconspicuous area of the carpet before applying it to the stain.


When pets have accidents on carpets, urine stains can cause long-lasting damage. The longer the urine remains on the carpet, the deeper it penetrates the fibers, resulting in a stubborn yellow stain and unpleasant odor. While it’s best to address the stain immediately, this isn’t always possible. Thankfully, there are several techniques you can try to eliminate old pet urine stains from your carpet.

Dealing with Urine Stains on Carpets

Dog urine is highly acidic. If a fresh stain is promptly attended to, it shouldn’t cause significant damage. However, as the stain dries, the pH level of the acid increases, creating ideal conditions for bacteria growth. This bacteria not only causes the acid to oxidize and stain the carpet, but also produces an unpleasant odor due to organic matter in the urine. The longer the stain remains, the worse the odor becomes, and the more difficult it is to remove.

How to Remove Urine Stains from Carpets

Fresh urine stains on carpets are relatively easy to handle. The key is to extract all the liquid from the carpet before it is absorbed and travels deep into the fibers.

Begin by folding a dry cloth or towel and firmly pressing it onto the stain to absorb as much urine as possible. After removing as much liquid as you can, sprinkle baking soda onto the stain and let it sit for at least 30 minutes to absorb any remaining urine and neutralize odors. Vacuum the baking soda afterwards to remove it from the carpet.

A mixture of equal parts dishwashing liquid and water can effectively clean dog urine stains on carpets. Use a sponge to blot the solution onto the stain, taking care not to pour it directly onto the carpet as this may cause additional liquid to seep into the fibers and potentially stain the underlying floor. Continuously blot the stain until it disappears. Once the urine is completely removed, blot the area with a clean damp towel to “rinse,” followed by a dry towel to remove excess moisture.

For stubborn stains or those that have been left unattended for a day or two, use a towel and baking soda to soak up any moisture, then blot the area with a solution of one part vinegar to two parts water. Avoid using vinegar on fresh pet stains, as the acid in the vinegar may react with the acid in the urine.

Avoid using acidic cleaners or those with a high pH level to clean pet urine stains. Additionally, refrain from using steam cleaners or applying heat to the stain, as this can cause the stain to set and become permanent.

Removing Old Dog Urine from Carpets

If vinegar or soap fails to remove the pet stain, or if the stain is old and deeply set into the carpet, pet enzymes can be effective. These enzymes break down the bacteria to eliminate both the stain and odor. Pet enzymes can be purchased from professional carpet cleaners or stores that sell pet or heavy-duty cleaning products.

How to Remove Stains from Carpets

To remove stains from carpets, you can use an enzyme-based cleaner. Simply spray the cleaner directly onto the stain and then follow the instructions on the label regarding the required waiting time and how to remove the stain. If the stain persists, it is recommended to seek the assistance of a professional carpet cleaner.

Leave a Comment