Let the power tool do the work.
How to remove old tile grout from floor.
Once the tile is clean and has no more hardened grout wipe over with a damp cloth and leave to dry.
The blade should easily chew through the grout.
Wipe the tile surfaces with the damp sponge removing the remaining grout from them.
The basic method for hardened grout removal use warm water and wipe it over the surface of the tiles with a sponge.
Scrub at the remaining grout with a moist pad until removed.
Do not force it.
In concert with the grout float a large damp sponge.
The sugar acts as a gentle abrasive to remove the grout without damaging the surface of the tile.
Start by holding the tool horizontally or vertically in the case of vertical seams turning on the power and lightly pressing the blade to the grout.
Fit the oscillating tool with a blade specially intended for removing tile grout.
Trade out the wooden paint stick for a nylon scouring pad.
If the grout doesn t appear to budge apply more sugar to the grout or pad and continue scrubbing.
Wring a sponge that s soaked in clean fresh water until the sponge is slightly damp.
Use the scraper to clean off large debris and then clean off any soapy residue with a damp cloth.