Bathroom Renovation Problems - grout removal

It seems that the grout problem referred to in an earlier blog just might have a solution. The company that did the renovations were not able to propose a way to remove the grout from the patio, so the owner did some research of his own. Found on the internet, groutmasters@aapt.net.au proposed a product Phosphoric Acid Substitute, and it looks as though that will shift the grout on the patio bricks. Now the owner is negotiating with a spray cleaning company to find out whether they can do a wide area clean instead of having to manually clean each brick in turn. This blog will keep you informed.