I found this little brush at Wal-mart in the automotive stuff with the auto detailing stuff. i works really well. not to stiff, but enough to really scrub the grout lines. this pic was taken after i had already used it a couple of times. still in great shape for just over a dollar. Sorry about the pics. my 10 megipixel camera really makes the detail show.
I also found this Grout Brush at home depot. I think Mikey uses the same one. it was also only $6.00 or so.
I also found this Grout Brush at home depot. I think Mikey uses the same one. it was also only $6.00 or so.