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Blot fresh urine, then use an upright carpet cleaner with a formula approved for that exact machine. Apply solution to the spot and extract it with spray-off passes, following the cleaner and formula labels. Test first in a hidden area, avoid scrubbing and steam, and expect that old or deep contamination may need professional treatment.
Before you start: protect the carpet and check compatibility
Read the carpet care label or carpet maker’s instructions, along with the upright cleaner manual. Water-based cleaning is not suitable for every carpet. The Carpet and Rug Institute’s guidance distinguishes carpet labeled W or W/S; follow your carpet maker if its instructions differ. BISSELL’s advice about those labels applies to its own guidance, not as universal permission for every carpet. The Carpet and Rug Institute’s cleaning and maintenance guidance and its spot-cleaning guidance explain care considerations.
- Test the cleaning solution in an inconspicuous area and let it dry; check for color change before treating the visible spot.
- Use only a formula the machine manual identifies as compatible. Products made for one upright or portable cleaner are not automatically safe for another.
- Do not use a steam cleaner on a urine spot. The Carpet and Rug Institute and the Humane Society of the United States warn that heat can set stain and odor. Use the extraction method below instead.
How to clean pet urine with an upright carpet cleaner
1. Blot fresh urine
Press white paper towels or a clean, absorbent white cloth onto fresh urine to lift as much liquid as possible. Replace saturated towels and continue pressing. Do not rub or scrub: that can spread the spot, push urine farther into the carpet layers, and damage carpet texture. BISSELL’s urine-cleaning guide and CRI’s cleaning guidance recommend blotting rather than scrubbing.
2. Prepare the cleaner with an approved formula
Follow the specific machine manual and formula label for tank setup, dilution, and use. As one verified example, BISSELL identifies its PET PRO OXY Urine Eliminator formula as intended for upright carpet cleaners. Its directions say to fill the fresh-water tank to the line with warm, not boiling, water, add formula to the formula line, and replace the tank. Those instructions apply to that formula; other machines and solutions may differ. BISSELL also recommends its formulas for machine longevity, but compatibility with your actual unit should be confirmed in its manual.
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3. Treat the spot and extract the moisture
Work over the visible stain and, where appropriate, a little beyond its edges. BISSELL advises covering about two inches beyond the visible spot because urine may spread beneath the surface. With the machine’s sprayer on, make a forward pass to apply solution. Then make a pass with the sprayer off to extract excess moisture. BISSELL’s product directions say to repeat until the area is clean; follow the actual product and machine instructions, and do not assume one pass will remove a stubborn spot.
4. Let the carpet dry fully
Allow the treated area to air-dry overnight, as BISSELL’s guide advises. Ventilate the room; open windows or use fans to circulate air. Keep the area out of normal use until it is fully dry.
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5. Reassess the odor and decide whether to repeat
Once dry, check whether the smell remains. If the machine and formula directions permit, repeat the cleaning and extraction. Avoid leaving excess moisture behind: the Carpet and Rug Institute warns that unattended moisture can weaken bonds between carpet layers and contribute to backing delamination, with seams particularly vulnerable.
Why odor or staining can remain
Removing visible discoloration does not necessarily mean all urine has been removed. Odor that returns after drying can indicate residue remains in the carpet or below it. The Carpet and Rug Institute notes that some products mask odor rather than remove it, and that odor can return in humid conditions. Old or deep contamination may reach carpet backing, padding, or subfloor, beyond what an upright cleaner can reliably treat.
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- FOR USE IN: All BISSELL & other leading upright deep-cleaning devices when used as directed.
- PROTECT AGAINST FUTURE STAINS: Only BISSELL formulas have StainProtect Technology.
There is no guarantee every stain or odor can be removed. Urine varies with an animal’s diet, medication, age, health, sex, and reproductive cycles, and the Carpet and Rug Institute says some urine stains may not be removable. Urine can also alter carpet dyes: on beige carpet, blue dyes may be attacked, leaving red and yellow dyes and a red, yellow, or orange appearance. Older spots can involve lasting dye or fiber damage. CRI’s Pet Urine and Carpet Technical Bulletin, revised July 27, 2017, describes these limitations.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When to use a spot spray or call a professional
Enzymatic spot treatment
An enzymatic pet-urine spray is an alternate spot-treatment method, not a replacement for extraction when dissolved residue needs to be removed. Follow the spray’s label, test it in a hidden area, and observe its dwell-time directions. BISSELL’s guide gives its own enzymatic-product instructions, including 15 minutes for light soil or 12–24 hours under a damp cloth for heavy soil; those timings are specific to the product described there and should not be applied to other sprays.
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Professional cleaning
If odor persists after reasonable cleaning, the spot is old or deep, or you suspect the padding or subfloor is affected, consider a certified carpet-cleaning firm. The Carpet and Rug Institute recommends professional help for difficult pet-stain and odor cases. A professional may be better placed to assess contamination below the carpet surface than repeated home cleaning.
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