A PUMICE STONE GETS RID OF MINERAL BUILDUP
Use a pumice stone to remove mineral deposits from toilets, sinks, tubs and oven interiors. Pumice is abrasive enough to grind off the minerals but won’t scratch porcelain. Just be sure to keep the end wet. You can use it on grill and oven grates, too. Pumice stones cost about $1.50 each at home centers and online.