Hello,

About 2 years ago we put a Granite Bench in a steam room in our pool room. Our pool stays a nice 92 degrees. We decided to save money and have a warm bench we would take hot water from our pool and run it through piping underneath the bench to keep it warm. However now we are noticing where this piping is it is darker than the areas that do not have the piping underneath. Is this something we should be concerned about? Is there possibly more issues in the future that may occur like cracking?

Thank you,

Fred