Best way to remove excess grout left on top of tiles for months?

[jediphx]

My wife and I tried tiling our room ourselves and we left a lot of excess grout on the top of the tiles and have been putting off doing anything for a while. I bought some heavy duty grout remover cleanser at home depot and even if I don't dilute it it doesn't really dissolve the grout and make it easy to scrape off like im hoping. Any ideas or suggestions?

 

[mooglemania85]

linky

 

[CorCentral]

The best way (unless the grout is very thick), is to use Blue SCOTCH-BRITE.
Make sure you buy the blue, for the green will scratch tile. The surface of the tile should be fairly easy to clean with the blue!

Blue Scotch-Brite

 

[jediphx]

what if grout is thick

 

[compman25]

screwchisel. j/k

 

[Vette73]

Try vinegar first with a scoure pad made for non-stick. The acid will weaken it up so that should help, but will need a lot of elbow grease.

 

[jediphx]

bump

 

[bctbct]

Try Marlins method. When you say excess how much excess are we talking? Vinegar will get rid of the chaulky appearance and light glaze.

 

[NoShangriLa]

Wiping with mild acid only get rid of the haze on top of tiles and may clean a tiny amount of excess grout within the first 48 hours. Cured grout require more brute method such as dremel/grinder or grout saw and then re grout.