That powder you see is the pumice stone remnants.
Cleaning hard water stains on granite.
Regular water stains can often be removed using a poultice made with products like baking soda but for hard water stains you must follow a specific process.
Scrub the stains lightly rinse with clean water and dry immediately.
But first you should remove any large crusty hard water build up using a plastic scraper to get the bulk of it off.
Apply it on the stains let it sit for no more than 5 minutes and wipe the surface clean.
Things you will need torremove hard water stains from granite.
Another homemade cleaning solution to eliminate spots from granite is the paste of baking soda and warm water.
It s easiest to clean the hard water stains and or soap scum if you spray on and let sit for 5 10 minutes and then scrub with a soft bristle brush or nylon pad.
For really stubborn stains try using a poultice or extractor.
Keeping your granite clean and sparkling usually requires little more than wiping off crumbs and spills with a damp cloth.
To clean hard water stains on granite you will need to use a cleaner specifically designed for use on the natural stone such as this product.
When hard water sits on a granite surface and dries it leaves a visible mineral deposit that often creates white rings especially around faucets.
Then using a wet pumice stone just go to town scrubbing the hard water stains away.
It may take several applications to remove the stain.
Mix these ingredients in a bowl until it forms a thick paste.
However if they are used in too high a concentration they can break down the surface of the granite and cause it to become more porous.
I also cleaned the corner seam along the back of the sink area.
Removing water stains from granite typically involves the use of a poultice.
4 ways to remove hard water stains from granite easily.
But sometimes even with the best of care accidents can happen.
Using blade and granite cleaner.
For this kind of stain use a specially formulated granite cleaning product like granite gold daily cleaner and scrub with a soft bristled brush then rinse and dry with a soft cloth.
Repeat the process until completely clean.
The pumice stone will break down as you use it because it is much softer than the granite.
Poultice products made especially for granite can be purchased at a hardware or stone surface specialty store or you can make your own paste.
For those tenacious water rings around a faucet resulting from hard water that sits on the surface try scrubbing softly with a brillo pad or gently scraping with a razor blade then wiping away the residue with a soft damp cloth.
This is a solution that can be created by a mixture of baking soda and 3 percent hydrogen peroxide.