Probably a dumb question, but I've got to ask!
We have a five year-old installation of white (with very light beige accents) 12 x 12 ceramic floor tile and sanded 3/16 joints in kitchen, great hall and front entry. The grout started out a slightly darker beige - it has been a constant problem for my wife, who keeps trying to get it clean. We've tried various sealers without effect - I am sure the color is the problem. Would it make any sense to apply a white caulk over the grout to bring the joints even with the tiles?

Hi Jim
There are no dumb questions here...only dumb answers! :p ...anyway, there are products made for this...they are called grout colorants and they work pretty good. I think your choices are limited now, since you have sealer on the joints already..but one company that I know of will let you apply it to sealed joints. Here is the link: http://www.aquamix.com/gc.htm You can call their service department..the number is on their website..and they'll let you know if it can go over the sealer that you have used.