Bad floor tile grout job in bathroom

The grout between the tiles in my bathroom was not done properly. Too much was left between the tiles so it is not straight and defined like it should be. It is OK, other than that. Is there anyway to repair this without having to rip the tile out and start over? The bathroom is rather larger 8ft x 15ft or so there is a lot of grout to fix. What about something like muriatic acid to eat it away a bit? Thanks, G
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Can you post a photo? You could use this to upload a photo quickly:
http://allyoucanupload.webshots.com /
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wrote:

Without a photo it's hard to say, but you can usually remove just the grout (dremel, etc.) and try again. Shouldn't be any need to pull up the tile.
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GaryH wrote:

Are you sure the lack of eveness is not due to the tiles themselves? Some have wavy/irregular edges.
Hydrochloric acid (muriatic) works fine BUT you have to know ABOUT acid AND how to use it.
If you use acid it is unlikely that you will be able to remove just the grout you want gone...plan on removing more (like to a 1/8" depth) and regrouting.
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GaryH wrote:

Sounds terrible. Like the grouter did not take care to wipe the joints evenly. Anyway I've never just replaced grout but I checked into having re-grouting done to change colors. The guys I talked to mentioned digging out enough grout in the joint as to allow them to add more. It was a wider joint on the floor tiles and the grout was sanded. They would have used a 4" angle grinder. I opted out and waited a few years to replace the flooring.
Either of those may be an option for you.
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GaryH wrote:

is a fine bit, about 1/8" or less. It does a nice job, with a router-style attachment for guide. I removed the grout in my shower and replaced it with new - it grinds out enough depth for new grout to take hold. Muriatic acid is a horrible idea...you could ruin most of the metal and/or electronics in you house by using it indoors, not to mention hydrogen? given off.
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Norminn wrote:

It goes on the floor, not sprayed around willy-nilly throughout the house.
In many parts of the world with concrete or terrazzo floors it is used regularly and frequently as a floor cleaner. ___________

By products with grout would be water and calcium chloride. No hydrogen.
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dadiOH wrote:

True, as is vinegar and water however there are safer chemicals available.
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