customer spilt Doombar on 16yr old wool loop off white carpet and cleaned it with a vax...2 months later called me..I extracted using after Prochem Gold prespray, called back, slioghtly better but still ther. Also same carpet in bedroom had a radiater leak, I tried debrowner and then SodMeth...no better. Apart from running away, any suggestions. Part of reason for attempting agaain is that its local, and the customer is happy for me to try anything as she is covering up the stains with towels cuz she cant stand them, yet dosent want to replace all the carpet. Thanks Simon