I looked around on the web and found a site that gave the basic instructions. So I went out and bought a grout saw. Went home and started to saw away. Four hours later I had hardly made a dent in the old grout. Went to Home Depots website and found out that you could get a grout attachment for a Dremel. So I went out and got one. Well it went a bit faster except that it is a pain to keep the bit between the tiles. I even bought an attachment for the Dremel that suppose to help guild the bit. Better then nothing but not great.
Ok what's the trick to doing this so that
1. it's reasonably efficient
2. does not damage the tiles
Ok what's the trick to doing this so that
1. it's reasonably efficient
2. does not damage the tiles