A lightweight, abrasive volcanic rock, often sold at home improvement retailers, facilitates the removal of stubborn stains and mineral deposits from toilet bowls. It offers a mechanical means of cleaning, particularly effective against buildup that chemical cleaners struggle to dissolve.
Its value lies in its ability to safely and effectively eliminate unsightly rings and residues without damaging the porcelain surface when used correctly. Historically, similar abrasive materials have been employed for cleaning tasks, but the specific composition and availability of this volcanic rock makes it a convenient and readily accessible option for homeowners.
