Hi: Thanks for all the great advice on this site. Has anyone ever heard of polished concrete for a deck coating of a saltwater pool and what are the pros and cons if so? I am getting bid to get new decking over my old Kooldeck which is chipping and peeling, and spoke to one masonry contractor today who suggested polished concrete as an economical way versus quartzite saying about 25% less. I do have palms near the pool which I believe are causing the cracking as the roots have gone into one of the returns I believe. Much mahalo for suggestions and help with this!