This is my second th-40. Turbo force is my tool for all tile and natural stone. My first tool is 10 years old and still running.
I have using the turbo-hybrid tile and grout cleaning tool for over 20 years! The most effective and efficient tool you can get! I have 100's of videos on all types of surfaces using this tool! https://www.youtube.com/channel/UCPV6MUXSwWb4_FBJnlPA0uA?view_as=subscriber