How do I clean the grout off of a granite composite sink?
I have new granite composite sink. When they did backsplash they got grout on sink. Now it looks chalky White. How do I clean it? Can it be saved??
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I had the same problem but I called the installers and they came out and fixed it. Here are other ideas:
White Haze On Granite Composite Sinks – Supreme Surface Cleaners
https://www.supremesurfacecleaners.com/blogs/.../white-haze-on-granite-composite-si...
I would call the installer, too. They are responsible for any problems associated with their work and should warranty the repair for nothing for the repair. They live on their reputation and want to keep clients happy so they don't get negative reviews potential clients would see and not want to use them for their project.
Try a 50/50 mix of vinegar and water to dissolve/soften the grout. May take some time. Then wash the sink and coat with mineral oil.
https://www.hunker.com/12174738/how-to-clean-a-granite-composite-sink
https://www.youtube.com/watch?v=DJVuTQOt7-A