Order online at Screwfix.com. Fast and versatile electric grout removal tool. An easy way to refresh a tiled area and remove old and discoloured grout. Supplied with 2 x precision cobalt steel grout removing tips. FREE next day delivery available, free collection in 5 minutes.
Great site for DIY... Removing and replacing old grout. First Remove the old grout…. If the grout is already coming out and is fairly loose – Use a grout removal tool found at all home improvement stores. Scrape along the damaged grout line and dig the old grout out of the grout joints.
There are specialty tools designed for removing old, stained, cracked tile grout, but few work as fast or as well as the multitool. Attach a carbide-grit grout-removal blade, and use it to grind grout from the joints between floor tiles and wall tiles. Since the blade oscillates back and forth and doesn't spin like a grinder, it doesn't spew grout dust throughout the room. Grout-removal blades come in different thicknesses for use on narrow and wide grout joints. - PopularMechanics.com