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Family & Relationships3 mins ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.I agree with Karl, some backings do smell but if the carpet is fairly new then chances are it's not a foam back carpet, especially in a hallway. Treat the carpet with really hot water and soap suds, clean in the direction of the pile of your carpet. That said the urine may have gone through to the rubber underfelt and there is not really a cleaner for that, ask your local carpet shop for a 1metrex1metre sqaure of underfelt and replace it.
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