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?
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)
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.
Dremel makes a nifty attachment for it's tools for removing grout. It
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.
It goes on the floor, not sprayed around willy-nilly throughout the
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
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