Mix the grout haze remover put on nitrile chemical resistant gloves.
Cleaning grout residue from slate tile.
Pick up the dirty water with a clean grout sponge.
How to remove grout haze from a slate floor 1.
Remove grout haze with water and cheesecloth.
Scrub the surface of the slate tile with a generous amount of water and a nylon scrub sponge.
Work on three or four.
Protect your hands with rubber gloves and dip your cheesecloth or terry cloth in water.
Clean the floor sweep or vacuum the floor thoroughly then wet mop the tile to dampen it.
Use another clean sponge to rinse the scrubbed slate tiles with.
Normally a scotch brite pad water and a little rubbing will remove grout residue and the hazy appearance it causes.