I bought a brand new home from Lennar. I have travertine in my master bathroom. We have hard water in my area and I noticed that my countertops had hard water spots. When CDI came out to recaulk my master shower only after living in my home for three months, I asked the worker what I could use to get the hard water spots off. He said, "I don't know, but I will call my office and tell you." He came in and told me to use any product to remove hard water spots. So I went to my local store and asked what I could use and they said use CLR. So I did that and tested the product and READ the directions. After two minutes I wiped CLR off and it removed the finish off my countertops. I put a care claim in with Lennar and CDI came out and looked at the countertops and asked me a few questions. CDI told me that they weren't going to fix my countertops because I NEVER READ THE DIRECTIONS AND THEY NEVER RECOMMENDED TO USE ANY PRODUCT THAT REMOVES HARD WATER SPOTS. How can a company install and offer products to the consumer that they don't know how to care for? I don't appreciate the lies they said. Of course, CDI doesn't care that my countertop is ruined. I have to hire someone to hopefully fix it. Use a different company!!!!!