On Dec 15, 8:14*am, Norminn wrote:

If you have unglazed tile, it is probably permanent or a job for an
expert.

I don't know how one might become an expert at removing set grout haze
from unglazed tile, I think the first job would kill you.

This is a part of setting tile with which I have no experience.

I'd have to guess if anybody knows how to do it it would be a brick
mason or tuck pointer, and one might not want to be too picky about
what happens to the tile.

If, as a journeyman in training you let this happen, your body could
probably be found deeply buried somewhere around the job site.
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- gpsman