Here's a good deal on CLR: [ Ссылка ]
Buy some magic erasers here: [ Ссылка ]
Good razor blades: [ Ссылка ]
Black gloves I use in the video: [ Ссылка ]
In this video, I try to show the full process of how I remove hard water calcium stains from my black granite countertops. You will need to purchase some CLR (calcium lime rust) cleaner and some magic erasers. I also use a small razor blade to scrape some of the calcium scales down a bit to speed up the process.

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