BlankI need to re-grout the ceramic towel on a bathroom shower area. Do I need to remove all of the grout from each and every grout line before spreading new grout?
Or, will the new grout (mixed with a latex adhesive instead of water) simply "stick" to the old grout once I scrape a bit of the old grout out, but not completely remove the grout that is there?
Thanx in advance