Bought for Green Bloom issue
I purchased hoping it would remove our "Green Bloom" from the backsplash on a bathroom piece of (light in color) granite. Well it didn't faze it whatsoever. The actual installers of the granite had to remove the affected piece and take it back to their shop and remove the "Green Bloom" from where it started and spread on the backsplash with their process.
Rating: 3 stars