use vinegar to loosen the calcium and scrape with blades. Mask fixtures so vinegar does not damage the fixtures. Do not try this on marble. but fine for granite.
Gourmet Stone Care
On Thursday, November 10, 2016 6:50 AM, Blain Haeg <firstname.lastname@example.org> wrote:
I carefully use a flat razor blade to remove the heavy buildup on the counter & a small nylon brush to remove it from the fixture. Then I use products such as MB-3, MB-26, or Stone Scrub to remove the remaining residue from the counter and fixtures.
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