Review on Flexible Scrubbing Screens For Household Cleaning - Pack Of 48 Pumie Flexi-Scours - 5.5" X 4" Abrasive Grit Cleaning Screens For Rust, Scale, And Carbon Removal On Grills And More - Bulk Saver Pack by Flex Morgan

I used the PUMIE FLEXI-SCOUR on a hard water toilet bowl ring for 30 minutes a day, for several days. After several days of 30 minutes a day scrubbing with the PUMIE FLEXI-SCOUR, the hard water toilet bowl ring was completely gone. At first I thought the PUMIE FLEXI-SCOUR didn't work because the hard water toilet bowl ring wasn't completely removed after 30 minutes of scrubbing it. So, I decided to make the hard water toilet bowl ring removal a several day, 30 minute a day process. Finally, after several days, the toilet bowl ring was completely gone. So, the PUMIE FLEXI-SCOUR worked to remove the hard water toilet bowl ring; but it was a several day, 30 minute a day scrubbing process.