mattyb:Technofreak: What about a Wet and Forget type of product?
Not a bad suggestion but they don't seem to have a specific tile cleaner. Maybe I'll go into one of their stores and ask.
I don't think you'll needa specific tile cleaner. There is more than one cleaner, I went to a local chemical company and bought some concentrate which I use for various jobs. It's basically the same as Wet and Forget at a fraction of the price.