I was about to post in here, then noticed I did a few years back (gulp). Moving on with dettol, don't leave it for longer than I week, it softens the resin and then when you start to scrub with said toothbrush, bits start to come off, until you notice, panic, calm down. Then eventually rebuild with greenstuff.
![Smile :)](./images/smilies/icon_e_smile.gif)