In article ,
jim wrote:
....

Ditto to above and there is a tool for the removal of grout to use on
a drill or dremel has worked good for me, Mildewcide only works on the
surface of the grout as a rule pleach is the best for killing it
mildew that is .

What *is* this tool you can use in a drill or dremel, that makes
it much easier to remove the grout?

Thanks!

David