if its the same grout type and color, you can go over it.

do it in small sections and work very fast as the grout will want to set up alot faster becasue the dry grout will suck al lthe moisture out of the new very fast.

jsut make sure the floor is clean and swept too before starting.

you might want to moisten the existing grout with a songe and water so the new grout doesnt dry too fast.

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There are two ways to do any job.

The right way and the wrong way.

Do it right everytime.

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thank you for your help i have layed several floors mine being the first now i was wanting to redo it again thank you

I was under the impression that your grout joints were de[pressed and you were wishing to fill them in.

if you are redoing an old instalaltion, since the grout has some wear on it, its often best to remove the grout before installing new grout, ot you might have a color problem, and if there were any spills on the joints, there ould be and adhesion issue as well.

_____________________________________________

There are two ways to do any job.

The right way and the wrong way.

Do it right everytime.

_____________________________________________

http://flooringworld.org/

_____________________________________________