Pet urine on my Oriental carpet

This beautiful Oriental rug was irreparably damaged by a large pet who consistently urinated on the same several spots over a long period of time.  Unfortunately, no professional cleaning procedure can remove the stains as the acid from the pet urine permanently discolored the yarns.  The only thing that can be done in this instance is to tear out all the affected sections and reweave them anew.  However, because there are many affected sections, it would be much more cost effective to replace the rug.  It is sad - as the rug other than the spots was in quite good condition.  --

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                 Kosker Traditional Rug Repair