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The Stain Library

Tell us the stain. We’ll show you what to try.

363 stains and growing

Or search by what you have at home: try “vinegar” or “dish soap”.

Before you start: quick rules

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Carpet & upholstery

Finding old pet urine spots in carpet

If a room smells and you can not see why, light helps you find the spot.

  1. Try this first

    Use a black light

    Turn out the lights and shine a black light (UV flashlight) on the carpet. Old urine glows yellow-green. Mark each spot with chalk or tape.

    Some spills and cleaners glow too, so use your nose to check.

  2. Then try

    Then use an enzyme cleaner

    Soak the marked spots with an enzyme cleaner for pet urine, as the label says (it must reach as deep as the urine did), leave to dry and do not step on it.

Still there? Try the all-purpose ways or pick another stain.

QT Bird · qtbird.com/stain-library/