The client was returning home after working abroad for a number of years. They have a small child and asked if we could make their kitchen floor a little safer as he likes to toddle around while mummy works. The flooring was a lovely type a travertine. However the grouting had badly discoloured and was very greasy around the highly trafficked areas. This allowed all sorts of germs and bacteria to have a happy home in which to live and grow protected by a yucky biofilm. First