You don't mentioned which tiles you are using? Like porcelain/ceramics/marble. Most of the people are now using the porcelain tiles on outdoor. So I give you the an article link which may help you.
Interesting problem, maybe it's time to change tiles?
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Cleaning Talk - Professional Cleaning and Restoration Forum
65.1K posts
24.1K members
Since 2006
A forum community dedicated to professional cleaning and restoration specialists. Come join the discussion about upholstery, displays, residential, styles, scales, reviews, accessories, classifieds, and more!