Has done a superb job on the living room carpet which is cream/honey coloured again (rather than melange du felt tip)... but there is one big ugly dark grey stain right by the door which he just can't shift.
He reckons that it's dyed with something (ribena/gravy?) and I honestly can't remember what it was, except that it happened whilst I was out of the house, and DH hadn't cleand it up!!............
Any ideas what to do with it? I can't put a rug over it as it's just where the door sweeps over the carpet as it opens It's only 2 years old!